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@article{MAN_1964__154_161173, author = {O. NJ\"ASTAD}, title = {On {Real-valued} {Proximity} {Mappings.}}, journal = {Mathematische Annalen}, pages = {413--419}, publisher = {mathdoc}, volume = {154}, year = {1964}, url = {http://geodesic.mathdoc.fr/item/MAN_1964__154_161173/} }
O. NJÄSTAD. On Real-valued Proximity Mappings.. Mathematische Annalen, Tome 154 (1964), pp. 413-419. http://geodesic.mathdoc.fr/item/MAN_1964__154_161173/