The fourth dimension and non-Euclidean geometry in modern art by Henderson, Linda Dalrymple fromLeonardo 0 Type: Book
Shadows of the circle: conic sections, optimal figures and non-Euclidean… by Hansen, Vagn Lundsgaard 0 Type: Book
The Beltrami equation: a geometric approach by Gutlânskij, Vladimir Âkovlevič fromDevelopments in Mathematics 0 Type: Book