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@article{IVM_1968_8_a7, author = {L. M. Markina}, title = {Riemannian, {pseudo-Riemannian} and {quasi-Riemannian} $A$-spaces}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {54--62}, publisher = {mathdoc}, number = {8}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1968_8_a7/} }
L. M. Markina. Riemannian, pseudo-Riemannian and quasi-Riemannian $A$-spaces. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1968), pp. 54-62. http://geodesic.mathdoc.fr/item/IVM_1968_8_a7/