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@article{IVM_1961_1_a8, author = {Yu. P. Kremneva}, title = {The discriminant of the characteristic equation of a symmetric matrix}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {90--97}, publisher = {mathdoc}, number = {1}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1961_1_a8/} }
Yu. P. Kremneva. The discriminant of the characteristic equation of a symmetric matrix. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 1 (1961), pp. 90-97. http://geodesic.mathdoc.fr/item/IVM_1961_1_a8/