@article{CTGDC_1980__21_1_5_0,
     author = {Guitart, Ren\'e},
     title = {Tenseurs et machines},
     journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle},
     pages = {5--62},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {21},
     number = {1},
     year = {1980},
     mrnumber = {569117},
     zbl = {0477.18007},
     language = {fr},
     url = {http://archive.numdam.org/item/CTGDC_1980__21_1_5_0/}
}