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@article{DAN_1974_217_5_a12, author = {R. F. Polishchuk}, title = {Isotropic {Pfaffian} space-time systems with torsion}, journal = {Doklady Akademii Nauk}, pages = {1037--1040}, publisher = {mathdoc}, volume = {217}, number = {5}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1974_217_5_a12/} }
R. F. Polishchuk. Isotropic Pfaffian space-time systems with torsion. Doklady Akademii Nauk, Tome 217 (1974) no. 5, pp. 1037-1040. http://geodesic.mathdoc.fr/item/DAN_1974_217_5_a12/