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@article{IVM_1980_7_a13, author = {Ya. L. Shapiro and V. A. Igoshin}, title = {Stability theorem for fibres of {Riemannian} parallel foliations}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {74--76}, publisher = {mathdoc}, number = {7}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1980_7_a13/} }
Ya. L. Shapiro; V. A. Igoshin. Stability theorem for fibres of Riemannian parallel foliations. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 7 (1980), pp. 74-76. http://geodesic.mathdoc.fr/item/IVM_1980_7_a13/