TY - JOUR AU - A. B. Antonevich AU - E. V. Kuzmina TI - Classical, analytical, formal and generalized solutions of a first-order differential equation with a meromorphic coefficient JO - Trudy Instituta matematiki PY - 2021 SP - 17 EP - 40 VL - 29 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TIMB_2021_29_1_a2/ LA - ru ID - TIMB_2021_29_1_a2 ER -