@article{CM_1935__1__429_0,
     author = {Witt, Rudolf},
     title = {Eine relativgeometrische {Erweiterung} der affinen {Fl\"achentheorie}},
     journal = {Compositio Mathematica},
     pages = {429--447},
     publisher = {Johnson Reprint Corporation},
     volume = {1},
     year = {1935},
     zbl = {0010.31703},
     language = {de},
     url = {http://www.numdam.org/item/CM_1935__1__429_0/}
}