TY - BOOK ID - 137528297 TI - Theory of graphs : proceedings of the colloquium held at Tihany, Hungary, September 1966 AU - Erdös, P. AU - Katona, G. PY - 1968 PB - New York (N.Y.): Academic press DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:137528297 AB - ER -