@article{CTGDC_1969__11_1_57_0,
     author = {Haahti, Heikki},
     title = {Sur la th\'eorie locale des connexions lin\'eaires sans diff\'erentiabilit\'e},
     journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle},
     pages = {57--71},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {11},
     number = {1},
     year = {1969},
     mrnumber = {248675},
     zbl = {0182.24501},
     language = {fr},
     url = {http://www.numdam.org/item/CTGDC_1969__11_1_57_0/}
}