1. Hamamatsu News, 2017, vol. 02, p. 32.
2. Prokhorov, A.M., Vorob’ev, N.S., Lozovoi, V.I., Smirnov, A.V., and Shchelev, M.Ya., Quantum Electron., 2002, vol. 32, no. 4, p. 283. https://doi.org/10.1070/QE2002v032n04ABEH002183
3. Elektronno-opticheskoe priborostroenie VNIIOFI za 40 let. Sbornik statei “Optiko-elektronnye izmereniya” (Electron-Optical Instrumental Manufacturing in All-Russian Research Institute for Optical and Physical Measurements for over a Period of 40 Years. Collection of Works;V.B. Lebedev,2005
4. Vorobiev, N.S., Gornostaev, P.B., Lozovoi, V.I., Smirnov, A.V., Shashkov, E.V., and, Shchelev, M.Ya., Instrum. Exp. Tech., 2016, vol. 59, no. 4, p. 551. https://doi.org/10.1134/S0020441216030246
5. https://www.bifocompany.com.