TY - JOUR AU - S. N. Olekhnik TI - The boundedness of the solutions of a certain second order differential equation JO - Differencialʹnye uravneniâ PY - 1973 SP - 1994 EP - 1999 VL - 9 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1973_9_11_a7/ LA - ru ID - DE_1973_9_11_a7 ER -