1. R. F. Casten, International Conference on Band Structure and Nuclear Dynamics, New Orleans, Louisiana, Feb. 1980, to be published.
2. A. Arima and F. Iachello, Phys. Rev. Lett. 35 (1975) 1069; Ann. Phys. (N.Y.) 99 (1976) 253; 111 (1978) 201; Phys. Rev. Lett. 40 (1978) 385; Phys. Rev. C16 (1977) 2085.
3. J. A. Cizewski, R. F. Casten, G. J. Smith, M. L. Stelts, W. R. Kane, H. G. Borner, and W. F. Davidson, Phys. Rev. Lett. 40 (1978) 167.
4. Scholten, F. Iachello and A. Arima, Ann. Phys. (N.Y.) 115 (1978) 366.
5. R. F. Casten and J. Cizewski, Nucl. Phys. A309 (1978) 477.