TY - JOUR AU - N. A. Lukashevich TI - Simplest third-order differential equations of $P$-type JO - Differencialʹnye uravneniâ PY - 1995 SP - 955 EP - 961 VL - 31 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1995_31_6_a4/ LA - ru ID - DE_1995_31_6_a4 ER -