L(2, 1)-labellings of integer distance graphs

Peter Che Bor Lam, Tao-Ming Wang, Guohua Gu. L(2, 1)-labellings of integer distance graphs. In Mirka Miller, Koichi Wada, editors, Proceedings of the 19th International Workshop on Combinatorial Algorithms, IWOCA 2008, September 13-15, 2008, Nagoya, Japan. pages 166-172, College Publications, 2008.

Abstract

Abstract is missing.