-
[1]
Letaw, J. R., et al., Astrophys. J. Suppl., 56(1984), 369.[2] Cesarsky, C. J., 20th ICRC Rapporteur Talk，8(1987), 87.[3] Berezinsky, V. S., 21th ICRC Rapporteur Talk，11(1990), 115[4] Letaw, J. R., et al., Astrophy, J, Suppl，51(1983), 271.[5] Webber, W, R., et al., Phys. Rev. C, 41(1990), 533.[6] Drury, LOC, Prog. Phys., 46(1983), 973.[7] Simpson, J. A., Ann. Rev. Nucl. Part, Sci., 33(1983), 323,[8] Heinbach, U. and Simon, M., 21th ICRC, 3(1990), 361.[9] Wiedenbeck, M. E., 21th ICRC, 11(1990), 57.[10] Simon, M., et al., Astrophys. J., 300(1986), 32.[11] Tang, K. K., 21th ICRC, 3(1990), 373.[12] Schlickeiser, R., Astrophys. J., 336(1989), 243.[13] 张力，喻传赞，天体物理学报，11(1991)，111,[14] Giler, M., et al., Astron. Astrophys., 217(1989), 311.