• [1]

    Weekm T C et al. Astmphys,J.,1989,342:379[2] Goret P et al. Astro. Astrophys.,1993,279:401[3] Petty D et al. Astron. Astrophys.,1996.311:L13[4] 13arrau A et al.Proc.25th ICRC,Vurban,1997,3:173[5] Tanitnori T et al. Astrophys. J.,1994 , 429:1.61[6] Could R J. Phys. Rev. Lett.,1965,49;577[7] De Jager O C et al. Astrophys. J .,1992,396:161;Astrophys.J.1996,457:253[8] Kasahara K et al. Computer Phys. Comm.,1991,64:109[9] Prothcrcx R J . Astro. Expr. ,1984 ,1: 33