Hazewinkel M. Algebras, rings and modules : Vol. 2 / M. Hazewinkel, N. Gubareni, V. Kirichenko, 2007 r=on-line. - Текст : электронный.
Hazewinkel M. Algebras, rings and modules : vol. 1 / M. Hazewinkel, N. Gubareni, V. V. Kirichenko, 2005 r=on-line