@article{CTGDC_1974__15_2_113_0,
     author = {Guitart, Ren\'e},
     title = {Remarques sur les machines et les structures},
     journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle},
     pages = {113--144},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {15},
     number = {2},
     year = {1974},
     mrnumber = {384891},
     zbl = {0319.18003},
     language = {fr},
     url = {http://www.numdam.org/item/CTGDC_1974__15_2_113_0/}
}