%0 Journal Article %A Kusano, Takaŝi %A Naito, Manabu %T Oscillation Criteria for a Class of Perturbed Schrödinger Equations %J Canadian mathematical bulletin %D 1982 %P 71-77 %V 25 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1982-010-3/ %R 10.4153/CMB-1982-010-3 %F 10_4153_CMB_1982_010_3