TY  - BOOK
AU  - Symposium on Combinatorics and Graph Theory, Calcutta, 1980
AU  - Rao, S.B., ed.
TI  - Combinatorics and graph theory - proceedings
T2  - Lecture Notes in Mathematics
SN  - 3540111514
U1  - 511.6 
PY  - 1981///
CY  - Berlin
PB  - Springer-Verlag
ER  -