@article{PMIHES_1964__23__75_0,
     author = {Haefliger, Andr\'e and Po\'enaru, Valentin},
     title = {La classification des immersions combinatoires},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {75--91},
     year = {1964},
     publisher = {Institut des Hautes Etudes Scientifiques},
     volume = {23},
     mrnumber = {30 #2515},
     zbl = {0147.42502},
     language = {fr},
     url = {https://www.numdam.org/item/PMIHES_1964__23__75_0/}
}