1966
Vysočanský, M., Ondriš, L., Nagy, L., Lehotay, E., Mukhin, S.V., Rikhvizki, S.V., Semenyushkin, I.N., and Raus, I.: Examination of the vúvet photomultipliers type 61 PK 412 (spec.) in a high frequency voltage control regime, Nuclear Instrum. Methods 41 (1966) 157-160.