• [1]

    M. Lacombe et al., Phys. Rev., C21(1980), 361, C23(1981), 2405; V. Mau. Invitsd Talk at the International Conference on Nuclear Physics, Florence, Italy, Aug. 29-Sept. 3, 1983.[2] Yu You-wen and Zhang Zong-ye, Nucl. Phys., A126(1984), 557.[3] Yu You-wenn. Nucl Phys , A455(1986), 737;Lu Zhi-cheng. Yu You-wen, Commun. in Ticor. Phys., 9(1988), 41.[4] Yu You-wen, BIHEP-TH-86-15 to be published ir. comrnun. in Theor. Phys.[5] K. Erkelenz, Phys. Rep., 13C(1974), 193;A. Gerslcn, R. Thompson and A. Green, Phys . Rev., D3(1971), 2076.[6] Zhang Zang-ye, R. Brauer, A. Faesaler and K. Shimizu; Nucl. Phys., A443(1985), 557.