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@article{DAN_1985_284_3_a2, author = {V. B. Marenich}, title = {Topological gap phenomenon for open manifolds of nonnegative}, journal = {Doklady Akademii Nauk}, pages = {528--531}, publisher = {mathdoc}, volume = {284}, number = {3}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_284_3_a2/} }
V. B. Marenich. Topological gap phenomenon for open manifolds of nonnegative. Doklady Akademii Nauk, Tome 284 (1985) no. 3, pp. 528-531. http://geodesic.mathdoc.fr/item/DAN_1985_284_3_a2/