@article{CRMATH_2017__355_8_914_0,
     author = {Arnaud, Marie-Claude and Le Calvez, Patrice},
     title = {A notion of {Denjoy} sub-system},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {914--919},
     publisher = {Elsevier},
     volume = {355},
     number = {8},
     year = {2017},
     doi = {10.1016/j.crma.2017.07.010},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2017.07.010/}
}