The periodic component of the gamma radiation of the source Cyg X-3 Neshpor, Yu. I. ; Zyskin, Yu. L. ; Vladimirskii, B. M. ; Gerasimov, S. A. ; Stepanyan, A. A. ; Fomin, V. P. Abstract Publication: Bulletin Crimean Astrophysical Observatory Pub Date: 1980 Bibcode: 1980BCrAO..61...51N