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@article{DAN_1967_172_1_a9, author = {K. S. Sibirskii}, title = {Unitary and orthogonal invariants of matrices}, journal = {Doklady Akademii Nauk}, pages = {40--43}, publisher = {mathdoc}, volume = {172}, number = {1}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_172_1_a9/} }
K. S. Sibirskii. Unitary and orthogonal invariants of matrices. Doklady Akademii Nauk, Tome 172 (1967) no. 1, pp. 40-43. http://geodesic.mathdoc.fr/item/DAN_1967_172_1_a9/