TY - JOUR AU - Kreith, Kurt AU - Kusano, TakaƝi TI - Oscillation Theorems for Nonlinear Ordinary Differential Equations of Even Order JO - Canadian mathematical bulletin PY - 1981 SP - 409 EP - 413 VL - 24 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1981-063-1/ DO - 10.4153/CMB-1981-063-1 ID - 10_4153_CMB_1981_063_1 ER -