@article{BSMF_1976__104__417_0,
     author = {Laudenbach, Fran\c{c}ois},
     title = {Submersions sur le cercle},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {417--431},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {104},
     year = {1976},
     doi = {10.24033/bsmf.1838},
     mrnumber = {55 #4211},
     zbl = {0348.57014},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1838/}
}