-
[1]
Arima, F. Iachello, Ann. Phys., 111(1978) ; 201.[2] Warnor, R. Casten, Phys. Rev., C25(1982), 2019.[3] Vergados, Nucl. Phys., A111 (1968) , 681.[4] J. Eisenberg, W.Nuclear Models Collective and single-Particle Phenomena North-and Publishing Company (1970) .[5] B Wybourne, Classical' Groups for Physicists A Wiley-Interscience Publication (1974).