TY  - GEN
AU  - Hajnal, A.
AU  - Sos, Vera T.
AU  - 
TI  - COMBINATORICS
U1  - 511.6 
PY  - 1978///
CY  - Amsterdam
PB  - North-Holland
KW  - Combinatorial Analysis -- Congresses
N1  - Organized By Janos Bolyai Mathematical Society
ER  -