TY  - BOOK
AU  - Bollobas Bela Ed.
ED  - Conference on graph theory (1981 : Cambridge)
TI  - Proceeding on Graph theory
T2  - Annals of Discrete Mathematics; 13
U1  - B44p1,N81, M2 
PY  - 1982///
CY  - Amsterdam
PB  - North Holland        
ER  -