1. V. I. Vernadsky,Biogeochemistry Problems Proceeding of Biogeochemical Laboratory, USSR Academy of Sci. Vol. 16. 1980 (in Russian).
2. A. P. Vinogradov, The etiology of Urovskoi Kashin-Beck disease about Proceeding of Biogeochem Lab., USSR Academy of Sci. 1949. Vol. 9. M. Science Press. P. 5–29 (in Russian).
3. A. P. Vinogradov, The genesis of biogechemical provinces about Proceeding of Biogeochem. Lab., USSR Academy of Sci., 1960, Vol. 11, M.: Science Press. P. 3–7 (In Russian).
4. V. V. Ermakov, The development of trend about natural and technogenic biogeochemical provinces as basis modern biospheric researches Microelements in the USSR. Riga: Zinatne, 1991. Issue No. 32, P. 3 (In Russian).
5. V. V. Kovalsky, Biosphere Regions—basis of biogeochemical regioning. Biosphere and its resources. M.: Science Press, 1971. P. 90–131 (In Russian).