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@article{DAN_1957_115_2_a3, author = {I. A. Danelich}, title = {The unequivocal definiteness of certain convex surfaces in the {Lobachesvky} space}, journal = {Doklady Akademii Nauk}, pages = {217--219}, publisher = {mathdoc}, volume = {115}, number = {2}, year = {1957}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1957_115_2_a3/} }
I. A. Danelich. The unequivocal definiteness of certain convex surfaces in the Lobachesvky space. Doklady Akademii Nauk, Tome 115 (1957) no. 2, pp. 217-219. http://geodesic.mathdoc.fr/item/DAN_1957_115_2_a3/