TY - JOUR AU - Šoltés, Pavel TI - On certain properties of the solutions of a nonlinear differential equation of the second order JO - Archivum mathematicum PY - 1971 SP - 47 EP - 63 VL - 7 IS - 2 UR - http://geodesic.mathdoc.fr/item/ARM_1971_7_2_a0/ LA - en ID - ARM_1971_7_2_a0 ER -