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@article{DAN_1990_312_2_a3, author = {F. I. Fedorov}, title = {The metric tensor and tetrads}, journal = {Doklady Akademii Nauk}, pages = {277--279}, publisher = {mathdoc}, volume = {312}, number = {2}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_312_2_a3/} }
F. I. Fedorov. The metric tensor and tetrads. Doklady Akademii Nauk, Tome 312 (1990) no. 2, pp. 277-279. http://geodesic.mathdoc.fr/item/DAN_1990_312_2_a3/