TY - JOUR AU - K. N. Lungu TI - Best approximations by rational functions with respect to the Hausdorff distance JO - Matematičeskie zametki PY - 1972 SP - 491 EP - 498 VL - 11 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1972_11_5_a2/ LA - ru ID - MZM_1972_11_5_a2 ER -