1. R. M. Asherova and Yu. F. Smirnov, ?Projection operators for the classical groups,? Usp. Mat. Nauk,24, No. 3, 227?228 (1969).
2. R. M. Asherova, Yu. F. Smirnov, and V. N. Tolstoi, ?Projection operators for simple Lie groups,? Teor. Mat. Fiz.,8, No. 2, 255?271 (1971).
3. R. M. Asherova, Yu. F. Smirnov, and V. N. Tolstoi, ?The projection method in nuclear theory and various forms of projection operators for the classical groups,? FÉI-397 preprint (1973).
4. A. N. Leznov and M. V. Savel'ev, ?On a parametrization of compact groups,? Funkts. Anal. Prilozhen.,8, No. 4, 87?88 (1974).
5. D. P. Zhelobenko, Compact Lie Groups and Their Representations [in Russian], Nauka, Moscow (1970).