By Haxell P.   in American Mathematical Monthly

ISSN:1930-0972|118|9|777-788

Mathematical Association of America‎(2011)‎

Access to resources Favorite 15.344493

By Haxell P.   Szabo T.   Tardos G.   in Journal of Combinatorial Theory, Series B

ISSN:0095-8956|88|2|281-297

Elsevier‎(2003)‎

Access to resources Favorite 9.381308