@article{CTGDC_1971__12_3_333_0,
     author = {Yuen, Ping Cheng},
     title = {Higher order frames and linear connections},
     journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
     pages = {333--371},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {12},
     number = {3},
     year = {1971},
     mrnumber = {307102},
     zbl = {0222.53033},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CTGDC_1971__12_3_333_0/}
}