Nikolai Ivanovich Utkin, his life and works

Rovinsky, Dmitry Aleksandrovich (1824-1895).Nikolai Ivanovich Utkin, his life and works: Research.YES.Rovinsky.- St. Petersburg: Type.Acad.Sciences, 1884. - [2], 196 p., 1 l.front.(Port.);26. -Alpha.decree.Names and items: s.187-196.- Atlas.-SPb., 1884 (cipher: D)..I. Utkin, Nikolai Ivanovich (1780-1863).Electronic Source: PB