Electronics in Astronomy - Early Applications of the Photoelectric Cell and Photomultiplier for Studies of Point-Source Celestial-Phenomenav. 73No. 7IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC1205–1220
DeVorkin, David H. 1985. "Electronics in Astronomy - Early Applications of the Photoelectric Cell and Photomultiplier for Studies of Point-Source Celestial-Phenomena." Proceedings of the IEEE, 73, (7) 1205–1220.