|Nikolai I. Lobachevsky, The Foundations of Geometry: Works on Non-Euclidean Geometry
(Minkowski Institute Press, Montreal)
ISBN: 978-1-927763-25-4 (ebook) - $5
ISBN: 978-1-927763-24-7 (softcover) - $15
Foreword by a Russian scientist (to be announced soon).
Translated from the Russian by Svetla Kirilova-Petkova and Vesselin Petkov. Edited (with an Introduction) by V. Petkov.
Forthcoming - to appear in November 2017