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@article{IVM_1974_4_a0, author = {L. A. Aksent'ev and V. N. Gaiduk and V. P. Mikka}, title = {Univalence criteria for $n$-symmetric functions}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {3--13}, publisher = {mathdoc}, number = {4}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1974_4_a0/} }
L. A. Aksent'ev; V. N. Gaiduk; V. P. Mikka. Univalence criteria for $n$-symmetric functions. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 4 (1974), pp. 3-13. http://geodesic.mathdoc.fr/item/IVM_1974_4_a0/