TY - JOUR AU - S. B. Vakarchuk TI - Exact constants for the approximation of plane curves by polynomial curves and polygonal lines JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1988 SP - 14 EP - 19 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1988_2_a2/ LA - ru ID - IVM_1988_2_a2 ER -