Differential geometry

do Carmo, M. P., Fischer, G., Pinkall, U., & Reckziegel, H. (2017). Differential geometry. In Mathematical Models: From the Collections of Universities and Museums - Photograph Volume and Commentary (pp. 155–180). Springer Fachmedien Wiesbaden. https://doi.org/10.1007/978-3-658-18865-8_10