1. Gazenko, O.G. and Shepelev, E.Ya., Development of Tsiolkovsky Ideas on the Biological Methods of Supporting the Spacecraft Habitability, Trudy 6-kh chtenii posv. razrabotke nauchn. naslediya i razvitiya idei K.E. Tsiolkovskogo, (Proc. 6th Lectures Dedicated to Tsiolkovsky Scientific Heriatage and Further Development of His Ideas), Kaluga, 1972, p. 3.
2. Gazenko, O.G., Grigor’ev, A.I., Meleshko, G.I., and Shepelev, E.Ya., Habitability and the Biological Systems of Life Support, Kosm. Biol. Aviakosm. Med., 1990, vol. 24, no. 3, p. 12.
3. Gazenko, O.T. and Grigor’ev, A.I., Basic Trends and Results of Scientific Investigations of the Institute of Biomedical Problems, 1963–1998, Aviakosm. Ekolog. Med., 1998, vol. 32, no. 5, p. 4.
4. Gazenko, O.G., Grigor’ev, A.I., and Egorov, A.D., From 108 Minutes to 438 days and Thereafter (to 40 Years of Yu.A. Gagarina Flight), Aviakosm. Ekolog. Med., 2001, vol. 35, no. 2, p. 5.
5. Gitel’zon, I.I., Kovrov, B.T., Lisovskii, G.M., et al., Eksperimental’nye ekologicheskie sistemy, vklyuchayushchie cheloveka. (Problemy kosmicheskoi biologii) (Problems of Space Biology: Manned Experimental Space System), Moscow, 1975.