@article{HHA_2006_8_1_a2,
     author = {Marco Grandis},
     title = {Modelling fundamental 2-categories for directed homotopy},
     journal = {Homology, homotopy, and applications},
     pages = {31--70},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {2006},
     doi = {10.4310/HHA.2006.v8.n1.a2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4310/HHA.2006.v8.n1.a2/}
}