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@article{IVM_1992_6_a10, author = {V. V. Ryzhkov}, title = {Affine connections that admit tangential {Levi--Civita} connections}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {90--92}, publisher = {mathdoc}, number = {6}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1992_6_a10/} }
V. V. Ryzhkov. Affine connections that admit tangential Levi--Civita connections. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 6 (1992), pp. 90-92. http://geodesic.mathdoc.fr/item/IVM_1992_6_a10/