W. R. Knorr - The Evolution of the Euclidean Elements: A Study of the Theory of Incommensurable Magnitudes and Its Significance for Early Greek Geometry Published: 1974-02-28 | ISBN: 9027705097 | PDF | 379 pages | 16.02 MB
P. Kelly, G. Matthews - The Non-Euclidean, Hyperbolic Plane: Its Structure and Consistency Published: 1981-06-18 | ISBN: 0387905529, 3540905529 | PDF | 333 pages | 8.53 MB
Sotirios E. Louridas, Michael Th. Rassias - Problem-Solving and Selected Topics in Euclidean Geometry: In the Spirit of the Mathematical Olympiads Published: 2013-05-17 | ISBN: 1461472725 | PDF | 260 pages | 3 MB
Steffen Fröhlich - Coulomb Frames in the Normal Bundle of Surfaces in Euclidean Spaces: Topics from Differential Geometry and Geometric Analysis of Surfaces Published: 2012-07-01 | ISBN: 3642298451 | PDF | 122 pages | 3 MB
A. A. Ungar - Hyperbolic Triangle Centers: The Special Relativistic Approach Published: 2010-07-12 | ISBN: 9048186366, 9048186382 | PDF | 319 pages | 3 MB
Erick J. Weinberg - Classical Solutions in Quantum Field Theory: Solitons and Instantons in High Energy Physics Published: 2012-10-08 | ISBN: 0521114632 | PDF | 342 pages | 5 MB