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@article{IVM_1999_2_a7, author = {Yu. V. Masterkov}, title = {On local controllability in the critical case}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {68--74}, publisher = {mathdoc}, number = {2}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1999_2_a7/} }
Yu. V. Masterkov. On local controllability in the critical case. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (1999), pp. 68-74. http://geodesic.mathdoc.fr/item/IVM_1999_2_a7/