TY - JOUR AU - V. M. Fedorov TI - Approximation of functions on a sphere JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1990 SP - 15 EP - 23 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1990_1_a3/ LA - ru ID - VMUMM_1990_1_a3 ER -