Combinatorics and graph theory; proceedings of the 30th semester held at the Stefan Banach International Mathematical Cetre Warsaw, Sept. 15-Dec. 17, 1987

Combinatorics and graph theory; proceedings of the 30th semester held at the Stefan Banach International Mathematical Cetre Warsaw, Sept. 15-Dec. 17, 1987 Polish Academy of Science, Institute of Mathematics creator Skupien, Zdzislaw editor. Borewiecki, Mieczy-Slaw editor. text Borewieki Werszawa 1989 monographic eng 251p. 511.6 P768.CG Banach Centre Publications ; v. 25 251029