1 - Combinatorial theory and its applications. I |
2 - Combinatorial theory and its applications. II |
3 - Combinatorial theory and its applications. III |
4 - Finite and infinite sets. Volume I : To Paul Erdös on his 60th birthday |
5 - Finite and infinite sets. Volume II : To Paul Erdös on his 60th birthday |
6 - Finite and infinite sets. Volume III : To Paul Erdös on his 60th birthday |