TY - JOUR AU - V. F. Byzov AU - V. A. Zavsegdashnii TI - Investigation of questions of approximation of convex surfaces by bilinear splines JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1987 SP - 75 EP - 76 VL - 180 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1987_180_a37/ LA - ru ID - TM_1987_180_a37 ER -