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@article{IVM_1974_5_a17, author = {A. E. Liber}, title = {The invariant normalization of a~certain class of surfaces of a~projective space}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {144--147}, publisher = {mathdoc}, number = {5}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1974_5_a17/} }
A. E. Liber. The invariant normalization of a~certain class of surfaces of a~projective space. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 5 (1974), pp. 144-147. http://geodesic.mathdoc.fr/item/IVM_1974_5_a17/