%0 Journal Article %A Noussair, E. S. %A Swanson, C. A. %T Oscillation of Semilinear Elliptic Inequalities by Riccati Transformations %J Canadian journal of mathematics %D 1980 %P 908-923 %V 32 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-069-8/ %R 10.4153/CJM-1980-069-8 %F 10_4153_CJM_1980_069_8