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@article{INTG_1975_7_a16, author = {G. G. Ivanov}, title = {An isotropic gravitational field}, journal = {Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara}, pages = {279--299}, publisher = {mathdoc}, volume = {7}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/INTG_1975_7_a16/} }
G. G. Ivanov. An isotropic gravitational field. Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara, Itogi Nauki i Tekhniki. Seriya "Problemy Geometrii", Tome 7 (1975), pp. 279-299. http://geodesic.mathdoc.fr/item/INTG_1975_7_a16/