TY - JOUR AU - E. A. Volkov TI - On approximate conformal mapping of a doubly connected polygon onto a annulus by the block method JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1997 SP - 145 EP - 163 VL - 214 UR - http://geodesic.mathdoc.fr/item/TM_1997_214_a6/ LA - ru ID - TM_1997_214_a6 ER -