On the definition of geographic latitude at the corresponding heights of two stars

Pevtsov, Mikhail Vasilyevich (1843-1902).On the determination of geographical latitude of the corresponding heights of two stars / M.V.Singers.- [ed., Izm.and add.]-Sanct-Petersburg: Type.Imp.Acad.Sciences, 1899. - [6], 125 p., 2 liters.kart.;25. - (Notes of the Russian Geographical Society for General Geography; T. 32, No. 2, ed. Ed. Action. P. A.A. Tillan).-Paral.Tit.l.On Fr.Yaz.OTT.From "Zap. Rus. Geogr. O-Wa".1887, vol. 17, No. 5..Electronic Source: PB