-
[1]
J. B. Gaffneg and A. H. Muller, Nucl. Phys, B250(1985), 109.[2] G. Sh. Dzhaparidze, Z. Phys, C32(1986), 59;S. J. Brodsky, J. Gunion, Phys. Rev. Lett., 37(1976), 402.[3] HRS collab., M. Derrick et al., Phys. Lett., 165B(1985), 449;K. Sugano, Inr. Mod. Phys, A3(1988), 2249[4] MARK I1 Collab., A. Petersen et al., Phys. Rev. Lett., 55(1985), 1954.[5] TASSO Collab. W. Braunschweig et al., Z. Phys., C45(1989), 1.[6] JADE Collab., W. Bartel et al., Phys. Lett., 123B(1983), 460.[7] TPC Collab.. R. J. Madaras, Renconter de Moriond on Strong Interaction and Gauge Theories, Les Arcs(1986).[8] CELLO Collab., Contributed Paper to the International Symposium on Lepton and Photon Interactions at High Energies, Hamburg (1987).[9] ARGUS ColIab., H. Albrecht et al., Z. Phys., C39(1988), 177;Phys. Lett., 183B(1987), 419.[10] R. d. Field and P. R. Feynman, Nucl. Phys., B136(1978), 1;P . Hoyer et al., Nucl . Phys , B161(1979), 349;A. Ali and F. Barreiro, Nucl. Phys. B236(1984). 269.[11] B. Andersson et al., Phys. Rep., 97(1983), 33.[12] B. R. Webber, Nucl. Phys, B238(1984), 492.[13] T. D. Gottschalk and D. Morris, Nucl. Phys, 0288(1987), 729,.[14] TPC Collab., H. Aiharara et al., Phys. Rev. Lett., 54(1985), 270.[15] Liu Ximing, Chin. J. High Ener. and Nucl. Phys, 14(1990). 31.[16] MARK I1 Collab., A. Petersen et al., Phys. Rev., D37(1988), 1;Tobriorn Stostrand, Int. J . Mod. Phys, A3(1988), 751.[17] Xie Qubing and Liu Ximing, Phys. Rev., D37(1988), 2169;Chin. J. High Ener. and Nucl. Phys, 11(1987). 834.[18] TASSO Collab., M. Ajthoff et al., Z. Phys., C22(1984), 307.[19] T. Appelquise and H. Plolizer, Phys. Rcu. Lett., 34(1980), 34;Phys. Rev., D12(1975), 1404.[20] Liu Ximing, Chinese Phys. Lett., 6(1989), 484.