@article{TAC_2008_21_a0,
     author = {L. Fajstrup and J. Rosicky},
     title = {A convenient category for directed homotopy},
     journal = {Theory and applications of categories},
     pages = {7--20},
     publisher = {mathdoc},
     volume = {21},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2008_21_a0/}
}