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@article{MZM_1983_33_5_a0, author = {S. V. Konyagin}, title = {Sets of points of nonemptiness and continuity of the metric projection}, journal = {Matemati\v{c}eskie zametki}, pages = {641--655}, publisher = {mathdoc}, volume = {33}, number = {5}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1983_33_5_a0/} }
S. V. Konyagin. Sets of points of nonemptiness and continuity of the metric projection. Matematičeskie zametki, Tome 33 (1983) no. 5, pp. 641-655. http://geodesic.mathdoc.fr/item/MZM_1983_33_5_a0/