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@article{DAN_1970_195_3_a10, author = {E. B. Oshman}, title = {The continuity of metric projection onto certain classes of subspaces in a {Banach} space}, journal = {Doklady Akademii Nauk}, pages = {555--557}, publisher = {mathdoc}, volume = {195}, number = {3}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_195_3_a10/} }
E. B. Oshman. The continuity of metric projection onto certain classes of subspaces in a Banach space. Doklady Akademii Nauk, Tome 195 (1970) no. 3, pp. 555-557. http://geodesic.mathdoc.fr/item/DAN_1970_195_3_a10/