1. Bekker, Z. E.:Physiology of fungi and their practical use. (In Russian). Izd. moskovsk. univ. 1963.
2. Belozerskiy, A. N., Proskuryakov, N. I.:Practical manual to the plant biochemistry. (In Russian). Gosudar. izdat. Sovietskaya nauka, Moskva 1951.
3. Cochrane, V.W.:Physiology of fungi. J. Wiley & Sons, N. Y. 1958.
4. Dikanskaya, E. M.:Formation of riboflavin by the microscopic fungus Eremothecium ashbyi. (In Russian). Trudy Inst. Mikrobiol. Akad. Nauk 3: 35, 1954.
5. Gunsalus, I. C., Stanier, R. Y. (Eds.):The Bacteria. A treatise on structure and function. Vol. II: Metabolism. Acad. Press, N. Y. 1961.