TY - JOUR AU - E. G. Rosales TI - On the growth of the number of long periodic solutions of differential equations JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1992 SP - 29 EP - 35 VL - 26 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1992_26_2_a3/ LA - ru ID - FAA_1992_26_2_a3 ER -