On the bases of geometry

On the foundations of geometry: to the centenary of N.I.Lobachevsky / Gauss, Belters, Rimann and others - Kazan: ed.Fiz.-mother.O -va, 1893. -[2], XVII, 121, [1] p., 2 l.crap.. -Bibliogr.In the settling.Note..I. Helmholtz.II.Lee.III.Poincare.IV.Gauss.V. Belremi.VI.Rimann.VII.Lobachevsky, N.I..1.People (collection).Electronic copy source: PBOriginal storage location: kpu