エルランゲン・プログラム
R.W. Sharpe (1997/6/12). Differential Geometry: Cartan's Generalization of Klein's Erlangen Program. Graduate Texts in Mathematics. 166. Springer. ISBN 978-0387947327
Garrett Birkhoff and M. K. Bennett (1988). “Felix Klein and His “Erlanger Program””. In Aspray and Kitcher. History and Philosophy of Modern Mathematics. University of Minnesota Press