1. Noise: Sources, Characterization;Van der Ziel,1970
2. Signal, Noise, and Resolution in Nuclear Particle Counters;Gillespie,1953
3. “Receiver Design for Digital Fiber Optic Communication Systems,”;Personick;Bell Syst. Tech. J.,1973
4. “Input Amplifiers for Optical PCM Receivers,”;Goell;Bell Syst. Tech. J.,1974
5. Semiconductor Devices for Optical Communication, H. Kressel, Editor (Springer Verlag, 1980), Ch. 4.