@article{CTGDC_1978__19_1_79_0,
     author = {Lellahi, Kazem},
     title = {Sur les cat\'egories pr\'eadditives topologiques},
     journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle},
     pages = {79--85},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {19},
     number = {1},
     year = {1978},
     mrnumber = {486053},
     zbl = {0395.18003},
     language = {fr},
     url = {http://www.numdam.org/item/CTGDC_1978__19_1_79_0/}
}