The newest research of glaciers and the reasons for their changes

Warikov, Alexander Ivanovich (1842-1916).The newest studies of glaciers and the reasons for their changes / [cit.] D. Chl.A.I.Warikova.- St. Petersburg: Type.Imp.Acad.Sciences, 1882. -19 p.;23. - (notes of the Imperial Russian Geographical Society for General Geography; T. 12, No. 2, ed. Ed. R. Lenza).I. Lenz, Robert Emilevich (1833-1903).Electronic Source: PB