512 SHK 12458 12459
Shklyarsky, D. O. Selected problems and theorems in elementary mathematics: arithmetic and Alqebra / by D. O. Shklyarsky, N. N. Chentsov and I. M. Yaglom. - Moscow : Mir Publishers, 1979 427p. :ill. * Algebra Complex numbers Matrics * Chentsov, N. N. * Title
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