Pool Oka

Fomin, Alexander Vasilyevich (186 -? - 1935).Oka pool: Geo-Botan.Research1897 / [Op.] A.V.Foma, assist.when cafeBotany Imp.Yuriev.un-ta;Ed.[and with pre-class] prof.N.I.Kuznetsova.- St. Petersburg: type-lit.A. Jacobson, 1898. - [4], 99 p.;30. - (Expedition Proceedings for the study of sources of the main rivers of European Russia, ed. Head of the Expedition General Lieutenant General Alexei Andreevich Tillan).I. Kuznetsov, Nikolai Ivanovich (1864-1932).Electronic Source: PB