@article{CTGDC_1973__14_3_227_0,
     author = {Penon, Jacques},
     title = {Cat\'egories \`a sommes commutables},
     journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle},
     pages = {227--289},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {14},
     number = {3},
     year = {1973},
     mrnumber = {357537},
     zbl = {0289.18002},
     language = {fr},
     url = {http://www.numdam.org/item/CTGDC_1973__14_3_227_0/}
}