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@article{DAN_1960_133_1_a4, author = {Yu. I. Levin}, title = {Spaces with affine connection adjoint to $n$~vector fields}, journal = {Doklady Akademii Nauk}, pages = {24--27}, publisher = {mathdoc}, volume = {133}, number = {1}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_133_1_a4/} }
Yu. I. Levin. Spaces with affine connection adjoint to $n$~vector fields. Doklady Akademii Nauk, Tome 133 (1960) no. 1, pp. 24-27. http://geodesic.mathdoc.fr/item/DAN_1960_133_1_a4/