@article{ASENS_2012_4_45_4_511_0, author = {Cazanave, Christophe}, title = {Algebraic homotopy classes of rational functions}, journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure}, pages = {511--534}, publisher = {Soci\'et\'e math\'ematique de France}, volume = {Ser. 4, 45}, number = {4}, year = {2012}, doi = {10.24033/asens.2172}, mrnumber = {3059240}, language = {en}, url = {http://www.numdam.org/articles/10.24033/asens.2172/} }