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@article{DAN_1968_178_1_a1, author = {S. I. Alber}, title = {Spaces of mappings into a manifold of negative curvature}, journal = {Doklady Akademii Nauk}, pages = {13--16}, publisher = {mathdoc}, volume = {178}, number = {1}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1968_178_1_a1/} }
S. I. Alber. Spaces of mappings into a manifold of negative curvature. Doklady Akademii Nauk, Tome 178 (1968) no. 1, pp. 13-16. http://geodesic.mathdoc.fr/item/DAN_1968_178_1_a1/