TY - JOUR AU - Medveď, Milan TI - Oscillatory properties of some classes of nonlinear differential equations JO - Mathematica Bohemica PY - 1992 SP - 123 EP - 131 VL - 117 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/MB.1992.125910/ DO - 10.21136/MB.1992.125910 LA - en ID - 10_21136_MB_1992_125910 ER -