@article{CRMATH_2009__347_11-12_659_0,
     author = {Calka, Pierre and Michel, Julien and Porret-Blanc, Sylvain},
     title = {Visibilit\'e dans le mod\`ele {Bool\'een}},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {659--662},
     publisher = {Elsevier},
     volume = {347},
     number = {11-12},
     year = {2009},
     doi = {10.1016/j.crma.2009.03.018},
     language = {fr},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2009.03.018/}
}