You may also wish to search for items by Koryakov, N. and Koryakov.
Only one matching reference was found.
Karpenko, G.V.; Koshokov, A.B.; Koryakov, N.Y.; Poltoratskii, G.M.; Rogachev, V.L., Liquid-phase equilibria in three component systems consisting of water, dimethylformamide and an organic solvent., Zh. Prikl. Khim. (Leningrad), 1979, 52, 2109-12. [all data]