• [1]

    Y. Gunduc, A. J. G. fey and P. J. Walrets, Phys. Rev., D21(1980), 271.[2] A. Chodos et al Phys. Rev. D9 (1974), 3471.[3] M. V. Bamhill III,. Phys. Rev D25(1980)860.[4] V. Krapchev, Phys. Rev.D13(1976), 329.[5] J F. Doiage; K. Johnson, Phys. Rev D21 (1980); 1975.[6] K. Ishikawa, Phys. Rev E19(1979), 2179.[7] R: Van Royen, V. F. Weisskipf, Naovo Cimento, 50A(1967), 617.