TY - JOUR AU - Kusano, Takaŝi AU - Naito, Manabu TI - Oscillation Criteria for a Class of Perturbed Schrödinger Equations JO - Canadian mathematical bulletin PY - 1982 SP - 71 EP - 77 VL - 25 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1982-010-3/ DO - 10.4153/CMB-1982-010-3 ID - 10_4153_CMB_1982_010_3 ER -