Is the source Cygnus X-3 being observed in underground experiments?
Andreev Yu. M., Kogai I. M., Kozyarivskii V. A., Chudakov A. E.
Data obtained at the Baksan underground scintillation telescope of the Institute of Nuclear Physics from March 1982 to February 1986 are reported. These results do not confirm the presence of a signal from the source Cygnus X-3 in the muon energy ranges E„ > 200 GeV and E„ > 500 GeV.