Bohm, A. Dynamical groups and spectrum generating algebras / A. Bohm, Yuval Ne'Eman, A. O. Barut. - [S.l.] : World Scientific Pub Co Inc, 1989. - 1168 p. ; 26 cm. - V. 1 & 2. . - V. 1 & 2. . ISBN: 9971501465 9789971501464 Dewey Class. No.: 512