@book{ Solr-EB000678627, title = {Recent Synthetic Differential Geometry}, series = {Ergebnisse der Mathematik und ihrer Grenzgebiete. 2. Folge, A Series of Modern Surveys in Mathematics}, author = {Busemann, Herbert}, address = {Berlin, Heidelberg}, publisher = {Springer Berlin Heidelberg}, year = {1970}, edition = {1st ed. 1970}, pages = {112}, isbn = {9783642880575}, url = {https://doi.org/10.1007/978-3-642-88057-5?nosfx=y} }