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@article{MZM_2015_97_1_a6, author = {N. V. Ilyushechkin}, title = {On an {Extremal} {Property} of {Normal} {Matrices}}, journal = {Matemati\v{c}eskie zametki}, pages = {67--73}, publisher = {mathdoc}, volume = {97}, number = {1}, year = {2015}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2015_97_1_a6/} }
N. V. Ilyushechkin. On an Extremal Property of Normal Matrices. Matematičeskie zametki, Tome 97 (2015) no. 1, pp. 67-73. http://geodesic.mathdoc.fr/item/MZM_2015_97_1_a6/
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