Light Background at Various Depths and Efficiency of Registration of Cosmic Muons by Underwater Cerenkov Detector Bannykh, A. E. ; Beresnev, V. I. ; Eremeev, A. P. ; Gaidash, V. A. ; Gulkhandanyan, O. M. ; Ivanov, V. I. ; Krystev, P. I. ; Markov, M. A. ; Maslov, V. Yu. ; Paka, V. T. ; Permyakov, A. A. ; Pozovnoi, V. O. ; Shtranikh, I. V. ; Surin, N. M. ; Volkov, A. N. ; Zheleznykh, I. M. Abstract Publication: International Cosmic Ray Conference Pub Date: 1987 Bibcode: 1987ICRC....6..269B