%0 Journal Article %A Allegretto, W. %A Erbe, L. %T Oscillation Criteria for Matrix Differential Inequalities(1) %J Canadian mathematical bulletin %D 1973 %P 5-10 %V 16 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1973-002-0/ %R 10.4153/CMB-1973-002-0 %F 10_4153_CMB_1973_002_0