1. Yamaya, T. et al.: Phys. Rev. C41, 2421 (1990); Yamaya, T., Ohkubo, S, Okabe, S., Fujiwara, M.: Phys. Rev. C47, 2389 (1993)
2. Michel, F., Reidemeister, G., Ohkubo, S.: Phys. Rev. Lett.57, 1215 (1986); Phys. Rev. C37, 292 (1988); Ohkubo, S.: Phys. Rev. C38, 2377 (1988)
3. Simpson, J.J., Dixon, W.R., Storey, R.S.: Phys. Rev. Lett.31, 946 (1973)
4. Ohkubo, S., Umehara, K.: Prog. Theor. Phys.80, 598 (1988)
5. Table of Isotopes, Lederer, C.M., Shirley, V.S. (eds.), p. 1. New York: Wiley 1978