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This is a list of the problem lists that Erdős wrote, in chronological order. The problem count reflects how many problems in this database appear in that paper. The order in which these problems appear in the database may not correlate at all with the order they are presented in the paper.

Papers with a green background have been completely checked, and so the database should contain all problems in that paper. There remain many problem lists of Erdős that have only been partially, if at all, checked against this database. One day, hopefully, all of the problems in the lists below will have been entered into this database. One purpose of this list to show where the work remains to be done.

I believe this list is complete; if you know of a problem list (i.e. a paper (co)written by Erdős whose main purpose is to discuss open problems) not on the list please let me know.

There are 0 lists, of which 61 are completely checked.

12 problems
(6 solved)
Some problems on the distribution of prime numbers
C.I.M.E., Teoria dei numeri (1955)
11 problems
(3 solved)
Problems and results in additive number theory
Colloque sur la Théorie des Nombres, Bruxelles, 1955 127-137 (1956) MR 0079027
29 problems
(18 solved)
Some unsolved problems
Michigan Math. J. 291-300 (1957) MR 98702
5 problems
(1 solved)
Über einige Probleme der additiven Zahlentheorie
Sammelband zu Ehren des 250. Geburtstages Leonhard
Eulers 116-119 (1959) MR 176972
109 problems
(55 solved)
Some unsolved problems
Magyar Tud. Akad. Mat. Kutató Int. Közl. 221-254 (1961) MR 177846
0 problems
(0 solved)
Remarks on number theory. IV. Extremal problems in number theory. I
Mat. Lapok 228-255 (1962) MR 195822
1 problem
(0 solved)
Quelques problémes de théorie des nombres
Monographies de L'Enseignement Mathématique, No.
6 81-135 (1963) MR 158847
20 problems
(11 solved)
Problems and results on diophantine approximations
Compositio Math. 52-65 (1964) MR 179131
7 problems
(2 solved)
Extremal problems in graph theory
Theory of Graphs and its Applications (Proc. Sympos. Smolenice, 1963) 29-36 (1964) MR 180500
17 problems
(6 solved)
Extremal problems in number theory
Proc. Sympos. Pure Math., Vol. VIII 181-189 (1965) MR 174539
51 problems
(23 solved)
Some recent advances and current problems in number theory
Lectures on Modern Mathematics, Vol. III 196-244 (1965) MR 177933
0 problems
(0 solved)
Problems and results on the convergence and divergence properties of the Lagrange interpolation polynomials and some extremal problems
Mathematica (Cluj) 65-73 (1967) MR 233114
5 problems
(4 solved)
Extremal problems in graph theory
A Seminar on Graph Theory 54-59 (1967) MR 223263
15 problems
(4 solved)
Some applications of graph theory to number theory
The Many Facets of Graph Theory (Proc. Conf.,
Western Mich. Univ., Kalamazoo, Mich., 1968) 77-82 (1969) MR 250917
20 problems
(11 solved)
Problems and results in chromatic graph theory
Proof Techniques in Graph Theory (Proc. Second Ann
Arbor Graph Theory Conf., Ann Arbor, Mich.,
1968) 27-35 (1969) MR 252273
7 problems
(0 solved)
Some extremal problems in combinatorial number theory
Mathematical Essays Dedicated to A. J. Macintyre 123-133 (1970) MR 276194
4 problems
(1 solved)
Some extremal problems in graph theory
Combinatorial theory and its applications, I-III (Proc. Colloq., Balatonfüred, 1969) 377-390 (1970) MR 300924
8 problems
(2 solved)
Some applications of graph theory to number theory
Proc. Second Chapel Hill Conf. on Combinatorial Mathematics and its Applications (Univ. North Carolina, Chapel Hill, N.C., 1970) 136-145 (1970) MR 266845
6 problems
(2 solved)
Some problems in additive number theory
Amer. Math. Monthly 619-621 (1970) MR 268141
0 problems
(0 solved)
Problems in combinatorial set theory
Combinatorial Structures and their Applications (Proc. Calgary Internat. Conf., Calgary, Alta., 1969) 97-100 (1970) MR 263640
0 problems
(0 solved)
Problems and results in finite and infinite combinatorial analysis
Ann. New York Acad. Sci. 115-124 (1970) MR 263675
43 problems
(18 solved)
Some unsolved problems in graph theory and combinatorial analysis
Combinatorial Mathematics and its Applications (Proc.
Conf., Oxford, 1969) 97-109 (1971) MR 0277392
0 problems
(0 solved)
Problems and results in combinatorial analysis
Combinatorics (Proc. Sympos. Pure Math., Vol. XIX, Univ. California, Los Angeles, Calif., 1968) 77-89 (1971) MR 432462
1 problem
(0 solved)
Unsolved problems in set theory
Axiomatic Set Theory (Proc. Sympos. Pure Math., Vol. XIII, Part I, Univ. California, Los Angeles, Calif., 1967) 17-48 (1971) MR 280381
9 problems
(3 solved)
Extremal problems in number theory
Proceedings of the 1972 Number Theory Conference
(Univ. Colorado, Boulder, Colo.) 80-86 (1972) MR 392900
61 problems
(25 solved)
Problems and results on combinatorial number theory
A survey of combinatorial theory (Proc. Internat. Sympos., Colorado State Univ., Fort Collins, Colo., 1971) 117-138 (1973) MR 0360509
0 problems
(0 solved)
Résultats et problémes en théorie des nombres
Séminaire Delange-Pisot-Poitou (14e année: 1972/73), Théorie des nombres, Fasc. 2 Exp. No. 24, 7 (1973) MR 396376
22 problems
(5 solved)
Remarks on some problems in number theory
Math. Balkanica 197-202 (1974) MR 429704
14 problems
(4 solved)
Extremal problems on graphs and hypergraphs
75-84 (1974) MR 360350
8 problems
(3 solved)
Unsolved Problems
278-297 (1974) MR 360350
0 problems
(0 solved)
Unsolved and solved problems in set theory
Proceedings of the Tarski Symposium (Proc. Sympos. Pure Math., Vol. XXV, Univ. California, Berkeley, Calif., 1971) 269-287 (1974) MR 357122
16 problems
(10 solved)
Some recent progress on extremal problems in graph theory
Congr. Numer. 3-14 (1975)
23 problems
(13 solved)
Problems and results in combinatorial number theory
Journées Arithmétiques de Bordeaux (Conf., Univ. Bordeaux, Bordeaux, 1974) 295-310 (1975) MR 0374075
2 problems
(2 solved)
Problems and results on finite and infinite graphs
Recent advances in graph theory (Proc. Second
Czechoslovak Sympos., Prague, 1974) 183-192. (loose errata) (1975) MR 389669
0 problems
(0 solved)
Problems and results on finite and infinite combinatorial analysis
Infinite and finite sets (Colloq., Keszthely, 1973;
dedicated to P. Erdős on his 60th birthday), Vols.
I, II, III 403-424 (1975) MR 389607
33 problems
(9 solved)
On some problems of elementary and combinatorial geometry
Ann. Mat. Pura Appl. (4) 99-108 (1975) MR 411984
0 problems
(0 solved)
Problems and results on Diophantine approximations. II
Répartition modulo 1 (Actes Colloq., Marseille-Luminy, 1974) 89-99 (1975) MR 412138
3 problems
(0 solved)
Some problems on elementary geometry
Austral. Math. Soc. Gaz. 2-3 (1975)
3 problems
(2 solved)
Problems and results in combinatorial analysis
Colloquio Internazionale sulle Teorie Combinatorie (Roma, 1973), Tomo II 3-17 (1976) MR 0465878
5 problems
(4 solved)
Problems and results in graph theory and combinatorial analysis
Proceedings of the Fifth British Combinatorial
Conference (Univ. Aberdeen, Aberdeen, 1975) 169-192 (1976) MR 409246
3 problems
(1 solved)
Some recent problems and results in graph theory, combinatorics and number theory
Proceedings of the Seventh Southeastern Conference on
Combinatorics, Graph Theory, and Computing (Louisiana State Univ., Baton Rouge, La., 1976) 3-14 (1976) MR 422031
22 problems
(2 solved)
Problems and results on number theoretic properties of consecutive integers and related questions
Proceedings of the Fifth Manitoba Conference on Numerical Mathematics (Univ. Manitoba, Winnipeg, Man., 1975) 25-44 (1976) MR 422146
2 problems
(1 solved)
Problems and results on consecutive integers
Publ. Math. Debrecen 271-282 (1976) MR 453671
0 problems
(0 solved)
Extremal problems on polynomials
Approximation theory, II (Proc. Internat. Sympos., Univ. Texas, Austin, Tex., 1976) 347-355 (1976) MR 477003
2 problems
(2 solved)
Problems and results on combinatorial number theory. II
J. Indian Math. Soc. (N.S.) 285-298 (1976) MR 444552
1 problem
(0 solved)
Problems in number theory and combinatorics
Proceedings of the Sixth Manitoba Conference on
Numerical Mathematics (Univ. Manitoba, Winnipeg,
Man., 1976) 35-58 (1977) MR 532690
1 problem
(0 solved)
Problems and results in combinatorial analysis
Proceedings of the Eighth Southeastern Conference on
Combinatorics, Graph Theory and Computing (Louisiana
State Univ., Baton Rouge, La., 1977) 3-12 (1977) MR 542437
54 problems
(16 solved)
Problems and results on combinatorial number theory. III
Number theory day (Proc. Conf., Rockefeller Univ.,
New York, 1976) 43-72 (1977) MR 472752
0 problems
(0 solved)
Problémes extrémaux et combinatoires en théorie des nombres
Séminaire Delange-Pisot-Poitou, 17e année:
1975/76, Théorie des nombres: Fasc. 2 Exp. No. G7, 5 (1977) MR 554189
0 problems
(0 solved)
Problems and results in combinatorial analysis and combinatorial number theory
Proceedings of the Ninth Southeastern Conference on Combinatorics, Graph Theory, and Computing (Florida Atlantic Univ., Boca Raton, Fla., 1978) 29-40 (1978) MR 527930
0 problems
(0 solved)
Problems and results in graph theory and combinatorial analysis
Problémes combinatoires et théorie des graphes (Colloq. Internat. CNRS, Univ. Orsay, Orsay, 1976) 127-129 (1978) MR 539958
3 problems
(1 solved)
Some more problems on elementary geometry
Austral. Math. Soc. Gaz. 52-54 (1978) MR 509363
0 problems
(0 solved)
Set-theoretic, measure-theoretic, combinatorial, and
number-theoretic problems concerning point sets in Euclidean
space

Real Anal. Exchange 113-138 (1978/79) MR 533932
0 problems
(0 solved)
Some extremal problems on families of graphs and related problems
Combinatorial mathematics (Proc. Internat. Conf. Combinatorial Theory, Australian Nat. Univ., Canberra, 1977) 13-21 (1978) MR 526725
2 problems
(0 solved)
On some unusual nonconventional problems in additive number
theory

Mat. Lapok 9-14 (1978/82) MR 734602
0 problems
(0 solved)
Some solved and unsolved problems in combinatorial number
theory

Math. Slovaca 407-421 (1978) MR 534819
3 problems
(1 solved)
Some number theoretic problems on binomial coefficients
Austral. Math. Soc. Gaz. 97-99 (1978) MR 519358
18 problems
(7 solved)
Some unconventional problems in number theory
Math. Mag. 67-70 (1979) MR 527408
1 problem
(0 solved)
Problems and results in graph theory and combinatorial analysis
Graph theory and related topics (Proc. Conf., Univ. Waterloo, Waterloo, Ont., 1977) 153-163 (1979) MR 538043
0 problems
(0 solved)
Old and new problems in combinatorial analysis and graph theory
Second International Conference on Combinatorial
Mathematics (New York, 1978) 177-187 (1979) MR 556022
19 problems
(2 solved)
Some unconventional problems in number theory
Acta Math. Acad. Sci. Hungar. 71-80 (1979) MR 515121
16 problems
(5 solved)
Some unconventional problems in number theory
Astérisque 73-82 (1979) MR 556666
0 problems
(0 solved)
Combinatorial problems in geometry and number theory
Relations between combinatorics and other parts of mathematics
(Proc. Sympos. Pure Math., Ohio State Univ.,
Columbus, Ohio, 1978) 149-162 (1979) MR 525325
3 problems
(3 solved)
Some old and new problems in various branches of combinatorics
Proceedings of the Tenth Southeastern Conference on
Combinatorics, Graph Theory and Computing (Florida
Atlantic Univ., Boca Raton, Fla., 1979) 19-37 (1979) MR 561032
28 problems
(11 solved)
Old and new problems and results in combinatorial number theory: van der Waerden's theorem and related topics
Enseign. Math. 325-344 (1979) MR 0570317
9 problems
(4 solved)
A survey of problems in combinatorial number theory
Ann. Discrete Math. 89-115 (1980) MR 593525
0 problems
(0 solved)
Problems and results in number theory and graph theory
Proceedings of the Ninth Manitoba Conference on
Numerical Mathematics and Computing (Univ. Manitoba,
Winnipeg, Man., 1979) 3-21 (1980) MR 593699
4 problems
(3 solved)
Nine little known problems in combinatorial number theory
Normat 155-164, 180 (1980) MR 597617
0 problems
(0 solved)
Some combinational problems in geometry
Geometry and differential geometry (Proc. Conf., Univ.
Haifa, Haifa, 1979) 46-53 (1980) MR 585852
297 problems
(112 solved)
Old and new problems and results in combinatorial number theory
Monographies de L'Enseignement Mathematique (1980) MR 0592420
76 problems
(35 solved)
On the combinatorial problems which I would most like to see solved
Combinatorica 25-42 (1981) MR 602413
1 problem
(0 solved)
My Scottish Book 'Problems'
The Scottish Book 35-43 (1981)
6 problems
(1 solved)
Some new problems and results in graph theory and other branches of combinatorial mathematics
Combinatorics and graph theory 9-17 (1981) MR 593525
1 problem
(0 solved)
Some applications of graph theory and combinatorial methods to number theory and geometry
Algebraic methods in graph theory, Vol. I, II (Szeged, 1978) 137-148 (1981) MR 642037
1 problem
(0 solved)
Problems and results in graph theory
The theory and applications of graphs (Kalamazoo, Mich.,
1980) 331-341 (1981) MR 634537
0 problems
(0 solved)
Problems and results on finite and infinite combinatorial
analysis. II

Enseign. Math. (2) 163-176 (1981) MR 630965
0 problems
(0 solved)
Many old and on some new problems of mine in number theory
Congr. Numer. 3-27 (1981) MR 635934
16 problems
(4 solved)
Some problems and results on additive and multiplicative
number theory

Analytic number theory (Philadelphia, Pa., 1980) 171-182 (1981) MR 654526
0 problems
(0 solved)
Solved and unsolved problems in combinatorics and
combinatorial number theory

Congr. Numer. 49-62 (1981) MR 681869
0 problems
(0 solved)
Problems and results in number theory
Recent progress in analytic number theory, Vol. 1 (Durham,
1979) 1-13 (1981) MR 637339
0 problems
(0 solved)
Problems and results on finite and infinite combinatorial analysis. II
Logic and algorithmic (Zurich, 1980) 131-144 (1982) MR 648300
0 problems
(0 solved)
Problems and results on block designs and set systems
Congr. Numer. 3-16 (1982) MR 725865
3 problems
(0 solved)
Miscellaneous problems in number theory
Congr. Numer. 25-45 (1982) MR 681700
1 problem
(0 solved)
Some new problems and results in number theory
Number theory (Mysore, 1981) 50-74 (1982) MR 665438
58 problems
(39 solved)
Some of my favourite problems which recently have been solved
59--79 (1982) MR 690096
6 problems
(1 solved)
Some remarks and problems in number theory related to the work
of Euler

Math. Mag. 292-298 (1983) MR 720650
2 problems
(0 solved)
On some of my conjectures in number theory and combinatorics
Proceedings of the fourteenth Southeastern conference on combinatorics, graph theory and computing (Boca Raton, Fla., 1983) 3-19 (1983) MR 734525
17 problems
(6 solved)
Combinatorial problems in geometry
Math. Chronicle 35-54 (1983) MR 706025
3 problems
(1 solved)
Some combinatorial, geometric and set theoretic problems in measure theory
Measure Theory, Oberwolfach 1983: Proceedings of the Conference held at Oberwolfach, June 26-July 2, 1983 321-327 (1984)
7 problems
(3 solved)
Research problems
Period. Math. Hungar. 101-103 (1984) MR 1553627
4 problems
(2 solved)
On some problems in graph theory, combinatorial analysis and
combinatorial number theory

Graph theory and combinatorics (Cambridge, 1983) 1-17 (1984) MR 777160
2 problems
(1 solved)
Some old and new problems in combinatorial geometry
Convexity and graph theory (Jerusalem, 1981) 129-136 (1984) MR 791022
4 problems
(2 solved)
Extremal problems in number theory, combinatorics and
geometry

Proceedings of the International Congress of
Mathematicians, Vol. 1, 2 (Warsaw, 1983) 51-70 (1984) MR 804676
0 problems
(0 solved)
Some new and old problems on chromatic graphs
Combinatorics and applications (Calcutta, 1982) 118-126 (1984) MR 852032
8 problems
(5 solved)
Problems and results in combinatorial geometry
Discrete geometry and convexity (New York, 1982) 1-11 (1985) MR 809186
0 problems
(0 solved)
Problems and results on chromatic numbers in finite and infinite graphs
Graph theory with applications to algorithms and computer
science (Kalamazoo, Mich., 1984) 201-213 (1985) MR 812666
24 problems
(6 solved)
On some of my problems in number theory I would most like to see solved
Number theory (Ootacamund, 1984) 74-84 (1985) MR 797781
0 problems
(0 solved)
Some of my old and new problems in elementary number theory
and geometry

Proceedings of the Sundance conference on combinatorics and
related topics (Sundance, Utah, 1985) 97-106 (1985) MR 833541
5 problems
(2 solved)
Some problems and results in number theory
Number theory and combinatorics. Japan 1984 (Tokyo,
Okayama and Kyoto, 1984) 65-87 (1985) MR 827779
0 problems
(0 solved)
Some solved and unsolved problems of mine in number theory
Topics in analytic number theory (Austin, Tex., 1982) 59-75 (1985) MR 804242
1 problem
(1 solved)
Some problems on number theory
Proceedings of the seventeenth Southeastern international
conference on combinatorics, graph theory, and computing
(Boca Raton, Fla., 1986) 225-244 (1986) MR 885283
0 problems
(0 solved)
Some problems on number theory
53--67 (1986) MR 844584
18 problems
(3 solved)
Some problems on finite and infinite graphs
Logic and combinatorics (Arcata, Calif., 1985) 223-228 (1987) MR 891250
17 problems
(2 solved)
Some combinatorial and metric problems in geometry
Intuitive geometry (Siófok, 1985) 167-177 (1987) MR 910710
0 problems
(0 solved)
Problems and results on minimal bases in additive number
theory

Number theory (New York, 1984-1985) 87-96 (1987) MR 894505
7 problems
(1 solved)
Problems and results in combinatorial analysis and graph theory
Discrete Math. 81-92 (1988)
0 problems
(0 solved)
Some old and new problems in combinatorial geometry
Applications of discrete mathematics (Clemson, SC, 1986) 32-37 (1988) MR 974622
23 problems
(6 solved)
On the irrationality of certain series: problems and results
New advances in transcendence theory (Durham, 1986) 102-109 (1988) MR 971997
3 problems
(2 solved)
Some Problems and Results on Combinatorial Number Theory
Annals of the New York Academy of Sciences 132-145 (1989) MR 1110810
0 problems
(0 solved)
On some problems and results in elementary number theory
Sichuan Daxue Xuebao 1-6 (1989) MR 1059667
0 problems
(0 solved)
Problems and results on extremal problems in number theory,
geometry, and combinatorics

Proceedings of the 7th Fischland Colloquium, I
(Wustrow, 1988) 6-14 (1989) MR 1050324
3 problems
(1 solved)
Some old and new problems on additive and combinatorial number
theory

Combinatorial Mathematics: Proceedings of the Third
International Conference (New York, 1985) 181-186 (1989) MR 1018622
50 problems
(18 solved)
Some of my favourite unsolved problems
A tribute to Paul Erdős 467-478 (1990) MR 1117038
7 problems
(1 solved)
Problems and results on graphs and hypergraphs: similarities and differences
Mathematics of Ramsey theory 12-28 (1990) MR 1083590
2 problems
(2 solved)
Some recent combinatorial problems
Technical Report, University of Bielefeld (1990)
0 problems
(0 solved)
On some of my favourite problems in graph theory and block designs
Matematiche (Catania) 61-73 (1990) MR 1180999
0 problems
(0 solved)
Some of my old and new combinatorial problems
Paths, flows, and VLSI-layout (Bonn, 1988) 35-45 (1990) MR 1083376
33 problems
(12 solved)
Problems and results in combinatorial analysis and combinatorial number theory
Graph theory, combinatorics, and applications, Vol. 1 (Kalamazoo, MI, 1988) 397-406 (1991) MR 1170793
0 problems
(0 solved)
Problems and results on polynomials and interpolation
Approximation theory (Kecskemét, 1990) 253-261 (1991) MR 1211436
0 problems
(0 solved)
On some unsolved problems in elementary geometry
Mat. Lapok (N.S.) 1-10 (1992) MR 1273073
20 problems
(12 solved)
Some of my favourite problems in various branches of combinatorics
Matematiche (Catania) 231-240 (1992) MR 1275857
34 problems
(7 solved)
Some of my forgotten problems in number theory
Hardy-Ramanujan J. 34-50 (1992) MR 1215590
0 problems
(0 solved)
On some of my favourite problems in various branches of
combinatorics

Fourth Czechoslovakian Symposium on Combinatorics,
Graphs and Complexity (Prachatice, 1990) 69-79 (1992) MR 1206246
20 problems
(4 solved)
Some Unsolved problems in Geometry, Number Theory and Combinatorics
Eureka 44-48 (1992)
48 problems
(17 solved)
Some of my favorite solved and unsolved problems in graph
theory

Quaestiones Math. 333-350 (1993) MR 1254162
6 problems
(4 solved)
Some problems and results in cochromatic theory
Quo vadis, graph theory? 261-264 (1993) MR 1217997
2 problems
(0 solved)
Problems and results on set systems and hypergraphs
Extremal problems for finite sets (Visegrád, 1991) 217-227 (1994) MR 1319165
29 problems
(11 solved)
Some problems in number theory, combinatorics and combinatorial geometry
Math. Pannon. 261-269 (1994) MR 1304854
1 problem
(1 solved)
Problems and results in discrete mathematics
Discrete Math. 53-73 (1994) MR 1313281
74 problems
(27 solved)
Some of my favourite problems in number theory, combinatorics, and geometry
Resenhas 165-186 (1995) MR 1370501
0 problems
(0 solved)
Some of my recent problems in combinatorial number theory, geometry and combinatorics
Graph theory, combinatorics, and algorithms, Vol. 1, 2 (Kalamazoo, MI, 1992) 335-349 (1995) MR 1405821
10 problems
(5 solved)
Some problems in number theory
Octogon Math. Mag. 3-5 (1995) MR 1374981
13 problems
(6 solved)
On some problems in combinatorial set theory
Publ. Inst. Math. (Beograd) (N.S.) 61-65 (1995) MR 1387354
0 problems
(0 solved)
Some old and new problems in approximation theory: research problems 95-1
Constr. Approx. 419-421 (1995) MR 1350678
1 problem
(1 solved)
Extremal problems in combinatorial geometry
Handbook of combinatorics, Vol. 1, 2 809-874 (1995) MR 1373673
9 problems
(3 solved)
Some of my favourite problems on cycles and colourings
Tatra Mt. Math. Publ. 7-9 (1996) MR 1402943
13 problems
(7 solved)
Some problems I presented or planned to present in my short
talk

Analytic number theory, Vol. 1 (Allerton Park, IL, 1995) 333-335 (1996) MR 1399346
20 problems
(7 solved)
Problems in number theory
New Zealand J. Math. 155-160 (1997) MR 1601631
24 problems
(12 solved)
Some old and new problems in various branches of combinatorics
Discrete Math. 227-231 (1997) MR 1439273
54 problems
(18 solved)
Some of my favorite problems and results
The mathematics of Paul Erdős, I 47-67 (1997) MR 1425174
20 problems
(9 solved)
Some recent problems and results in graph theory
Discrete Math. 81-85 (1997) MR 1432220
48 problems
(12 solved)
Some of my favourite unsolved problems
Math. Japon. 527-537 (1997) MR 1487304
37 problems
(10 solved)
Some unsolved problems
Combinatorics, geometry and probability (Cambridge, 1993) 1-10 (1997) MR 1476428
29 problems
(10 solved)
Some of my new and almost new problems and results in combinatorial number theory
Number theory (Eger, 1996) 169-180 (1998) MR 1628841
12 problems
(3 solved)
A selection of problems and results in combinatorics
Combin. Probab. Comput. 1-6 (1999) MR 1684620