1. Masaike, A.: In: Symposium/workshop on spin/symmetries. Ramsay, W.D., Oers, W.T.H. van (eds.), p. 126, TRIUMF Preprint 89-5
2. Bowman, J.D. et al.: In: Fundamental symmetries in nuclei and particles. Hendrikson, H., Vogel, P. (eds.), p. 1, Singapore: World Scientific 1990
3. Bunakov, V.E., Gudkov, V.P.: Nucl. Phys. A401, 93 (1983)
4. M�ller, A., Davis, E.D., Harney, H.L.: Phys. Rev. Lett.65, 1329 (1990)
5. Bunakov, V.E., Davis, E.D., Weidenm�ller, H.A.: Phys. Rev. C42, 1718 (1990)