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@article{IVM_1984_9_a17, author = {Ya. L. Shapiro and V. A. Igoshin}, title = {Singular points of a~geodesic field}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {79--81}, publisher = {mathdoc}, number = {9}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1984_9_a17/} }
Ya. L. Shapiro; V. A. Igoshin. Singular points of a~geodesic field. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 9 (1984), pp. 79-81. http://geodesic.mathdoc.fr/item/IVM_1984_9_a17/