https://www.scirp.org/reference/ReferencesPapers?ReferenceID=2110903
Grishankov, G.Y. (1977) Paragenetic Systems of Natural Zones (Illustrated by Crimea). In Systematic...
Grishankov, G.Y. (1977) Paragenetic Systems of Natural Zones (Illustrated by Crimea). In Systematic Natural Research, Nauka Publishing House, Moscow, 128-139.