TY - JOUR AU - V. V. Grushin TI - Isolated singularities of solutions of difference equations JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1961 VL - 16 IS - 2 UR - http://geodesic.mathdoc.fr/item/RM_1961_16_2_a19/ LA - ru ID - RM_1961_16_2_a19 ER -