TY - JOUR AU - P. E. Haxell AU - A. D. Scott TI - On Ryser's conjecture JO - The electronic journal of combinatorics PY - 2012 VL - 19 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.37236/1175/ DO - 10.37236/1175 ID - 10_37236_1175 ER -