Umezawa E. Renormalization group invariant constraints among coupling constants in a noncommutative geometry model / E. Umezawa, 1998. - 20 p. - Текст : непосредственный.
Naka S. approach to electroweak interactions based on non-commutative geometry / S.Naka,E.Umezawa, 1994. - 20 p. - Текст : непосредственный.