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@article{IVM_2013_10_a7, author = {M. A. Sevodin}, title = {Sets convex in a~cone of directions}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {73--76}, publisher = {mathdoc}, number = {10}, year = {2013}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_2013_10_a7/} }
M. A. Sevodin. Sets convex in a~cone of directions. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 10 (2013), pp. 73-76. http://geodesic.mathdoc.fr/item/IVM_2013_10_a7/