TY - JOUR AU - Butler, G. AU - Macki, J. W. TI - Oscillation and Comparison Theorems for Second Order Linear Differential Equations with Integrable Coefficients JO - Canadian journal of mathematics PY - 1974 SP - 294 EP - 301 VL - 26 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1974-031-8/ DO - 10.4153/CJM-1974-031-8 ID - 10_4153_CJM_1974_031_8 ER -