TY - JOUR AU - V. T. Martynyuk TI - Linear methods of approximation of bounded functions of two variables relative to a~Hausdorff type metric JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1968 SP - 42 EP - 50 IS - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1968_7_a6/ LA - ru ID - IVM_1968_7_a6 ER -