TY - JOUR AU - S. A. Stepin TI - Non-integrability by quadratures and formal asymptotic solutions of the Riccati equation JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2014 SP - 1123 EP - 1125 VL - 69 IS - 6 UR - http://geodesic.mathdoc.fr/item/RM_2014_69_6_a4/ LA - en ID - RM_2014_69_6_a4 ER -