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@article{IVM_1971_8_a4, author = {V. I. Gracheva}, title = {Point correspondences of {Euclidean} spaces with tangentially degenerate graph}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {41--51}, publisher = {mathdoc}, number = {8}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1971_8_a4/} }
V. I. Gracheva. Point correspondences of Euclidean spaces with tangentially degenerate graph. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1971), pp. 41-51. http://geodesic.mathdoc.fr/item/IVM_1971_8_a4/