European Journal of Combinatorics > 2008 > 29 > 7 > 1717-1720
Source
Abstract
Identifiers
journal ISSN : | 0195-6698 |
DOI | 10.1016/j.ejc.2007.09.006 |
European Journal of Combinatorics > 2008 > 29 > 7 > 1717-1720
journal ISSN : | 0195-6698 |
DOI | 10.1016/j.ejc.2007.09.006 |