1
Published: 1975
Superior document: Infinite and finite sets to Paul Erdös on his 60th birthday. [Colloquium at Keszthely from June 25 - July 1, 1973] 3 (1975)
2
Superior document: Colloquia mathematica Societatis János Bolyai 10
3
Published: 1975
Superior document: Infinite and finite sets to Paul Erdös on his 60th birthday. [Colloquium at Keszthely from June 25 - July 1, 1973] 1 (1975)
4
Published: 1975
Superior document: Infinite and finite sets to Paul Erdös on his 60th birthday. [Colloquium at Keszthely from June 25 - July 1, 1973] 2 (1975)