@article{CRMATH_2008__346_3-4_129_0,
     author = {Cazanave, Christophe},
     title = {Classes d'homotopie de fractions rationnelles},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {129--133},
     publisher = {Elsevier},
     volume = {346},
     number = {3-4},
     year = {2008},
     doi = {10.1016/j.crma.2008.01.004},
     language = {fr},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2008.01.004/}
}