Non-Euclidean Adventures on the Lenart Sphere: Activities Comparing Planar and Spherical Geometry

Brand: W. H. Freeman

Euclidean and Non-Euclidean Geometries: Development and History

Rene Daumal

Mount Analogue: A Tale of Non-Euclidean and Symbolically Authentic Mountaineering Adventures

Ideas of Space: Euclidean, non-Euclidean, and Relativistic

Brand: Dover Publications

Euclidean Geometry and Transformations (Dover Books on Mathematics)

A Simple Non-Euclidean Geometry and Its Physical Basis: An Elementary Account of Galilean Geometry and the Galilean Principle of Relativity (Heidelberg Science Library)