TY - JOUR AU - P. A. Borodin TI - Approximation properties of subspaces in spaces of type $\mathbf{c}$ JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 2002 SP - 54 EP - 58 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_2002_5_a12/ LA - ru ID - VMUMM_2002_5_a12 ER -