%0 Journal Article %A Philos, CH. G. %T Oscillation Criteria For Second Order Superlinear Differential Equations %J Canadian journal of mathematics %D 1989 %P 321-340 %V 41 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1989-016-3/ %R 10.4153/CJM-1989-016-3 %F 10_4153_CJM_1989_016_3