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@article{DAN_1975_220_2_a2, author = {L. G. Gurov}, title = {On the stability of {Lorentz} mappings. {Estimates} for derivatives}, journal = {Doklady Akademii Nauk}, pages = {273--276}, publisher = {mathdoc}, volume = {220}, number = {2}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1975_220_2_a2/} }
L. G. Gurov. On the stability of Lorentz mappings. Estimates for derivatives. Doklady Akademii Nauk, Tome 220 (1975) no. 2, pp. 273-276. http://geodesic.mathdoc.fr/item/DAN_1975_220_2_a2/