TY - JOUR AU - W. P. Odinets TI - Conditions for the existence and strong uniqueness of a projection with norm~1 JO - Matematičeskie zametki PY - 1982 SP - 607 EP - 612 VL - 32 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1982_32_5_a2/ LA - ru ID - MZM_1982_32_5_a2 ER -