%0 Journal Article %A Murphy, I. S. %T A Note on a Matrix Result of Ryser %J Canadian mathematical bulletin %D 1975 %P 149-150 %V 18 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-029-7/ %R 10.4153/CMB-1975-029-7 %F 10_4153_CMB_1975_029_7