TY - JOUR AU - I. V. Goryuchkina TI - Classes of finite order formal solutions of an ordinary differential equation JO - Čebyševskij sbornik PY - 2016 SP - 64 EP - 87 VL - 17 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CHEB_2016_17_2_a3/ LA - ru ID - CHEB_2016_17_2_a3 ER -