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@article{IVM_1994_3_a10, author = {S. Kh. Rakhmatov}, title = {Normalized congruences of a~projective space}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {53--61}, publisher = {mathdoc}, number = {3}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1994_3_a10/} }
S. Kh. Rakhmatov. Normalized congruences of a~projective space. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1994), pp. 53-61. http://geodesic.mathdoc.fr/item/IVM_1994_3_a10/