• [1]

    R. P. Feynman, Phys. Rev. Lett., 23(1969), 1415.[2] M. G. Albrow et al., Nucl. Phys., B51(1973), 388[3] M. G. Albrow et al., Nucl. Phys., B54(1973), 6[4] M. G. Albrow et al., Nucl. Phys., B73(1974), 40.[5] J. Engler et al., Nucl. Phys., B84(1975), 70[6] S. Erhan et al，Phys. Lett., 85B(1979), 447.[7] P. Capiluppi et al., Nucl. Phys., B70(1974), 1.[8] M. Basile et al，Nuo. Cim., 58A(1980), 193.[9] M. Basile et al，Nuo. Cim., 66A(1981), 129.[10] W. Thome et al., Nucl. Phys,D129(1977), 365.[11] K. Alpgard et al., Phys. Lett., 112B(1982), 184.[12] J.G.Rushbrooke CERN-EP/85-178.[13] G.J.Alner et al., CERN-EP/86-126[14] J. Wdowczyk and A. W. Wolfendale, J. Phys. G: Nucl. Phys., 10(1984), 257[15] J. Wdowczyk and A. W. Wolfendale, J. Phyr. G: Nucl. Phys., 13(1987), 411[16] M. Haguenauer et al., 20th ICRC, Moscow, 5(1987), 23.[17] J. Benecke et al., Phys. Rev., 188(1969), 2159[18] T. Kafka et al，Phys. Rev.; D16(1977), 1261.[19] T. T. Chou, Chen Ning Yang and E. Yen, Phys. Rev. Lett.,54(1985), 510.[20] Ding Linkai et al., Multiparticle Production, Proceedings of the Shandong Workshop, Jinan, China, pub. by World Scientific p. 283.[21] Zhu Qingqi et al.5th International Symposiua on Very High Energy Cosmic Ray Interactions, (1988),70.[22] Wu Yuanfang and Liansou, Chinese Phys. Lett., 3(1986); 517.