1. Anikeeva, I. D., Vaulina, E. N., Shevchenko, V. A.: [Influence of UV-rays onChlorella.] In Russ. -Radiobiologiya4: 883–889, 1964.
2. Apasheva, L. M., GusarevA, E. V., KuLInich, A. V., Shevchenko, V. A.: Study on the role of thiols in radiosensitivity of different strains ofChlorella vulgaris Beijer. -Radiobiology12:904–906 1972.
3. Apasheva, L. M., Gusareva, E. V., Kulinich, A. V., Puatishev, D. R., Shevchenko, V. A.: Study on the role of thiols in modification ofChlorella radiosensitivity during the division cycle. -Radiobiology13: 102–107, 1973.
4. Chankova, S. G.: [Studies of sensibility and mutability ofChlorella vulgaris B. to independent and combined mutagenic treatments.] In Bulg. -PhD. Thesis, Sofia 1977.
5. Edreva, A. M., Hadjiiska, E.: [About determination of sulfhydril (thiol) group content in plant material.] In Bulg. Fiziol. Rast. (Sofia)9: 73–83, 1984.