%0 Journal Article %A P. E. Haxell %A A. D. Scott %T On Ryser's conjecture %J The electronic journal of combinatorics %D 2012 %V 19 %N 1 %U http://geodesic.mathdoc.fr/articles/10.37236/1175/ %R 10.37236/1175 %F 10_37236_1175