@article{CTGDC_2011__52_1_45_0,
     author = {Grandis, Marco},
     title = {Singularities and regular paths (an elementary introduction to smooth homotopy)},
     journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
     eid = {2},
     pages = {45--76},
     publisher = {Andr\'ee CHARLES EHRESMANN},
     volume = {52},
     number = {1},
     year = {2011},
     mrnumber = {2807421},
     zbl = {1237.58007},
     language = {en},
     url = {http://www.numdam.org/item/CTGDC_2011__52_1_45_0/}
}