@article{CTGDC_2003__44_4_281_0,
     author = {Grandis, Marco},
     title = {Directed homotopy theory, {I}},
     journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
     pages = {281--316},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {44},
     number = {4},
     year = {2003},
     mrnumber = {2030049},
     zbl = {1059.55009},
     language = {en},
     url = {http://www.numdam.org/item/CTGDC_2003__44_4_281_0/}
}