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@article{DAN_1985_284_3_a1, author = {S. S. Kutateladze}, title = {Nonstandard analysis of tangent cones}, journal = {Doklady Akademii Nauk}, pages = {525--527}, publisher = {mathdoc}, volume = {284}, number = {3}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_284_3_a1/} }
S. S. Kutateladze. Nonstandard analysis of tangent cones. Doklady Akademii Nauk, Tome 284 (1985) no. 3, pp. 525-527. http://geodesic.mathdoc.fr/item/DAN_1985_284_3_a1/