Search for Shower Excess from Cygnus X-3 Kirov, I. N. ; Petrov, S. P. ; Stamenov, J. N. ; Ushev, S. Z. ; Lilkov, V. M. ; Janminchev, V. D. ; Dubovij, A. G. ; Nesterova, N. M. ; Yakovlev, V. I. Abstract Publication: International Cosmic Ray Conference Pub Date: 1987 Bibcode: 1987ICRC....1..223K