@article{CRMATH_2011__349_7-8_385_0,
     author = {Ben Braiek, Hnia and Ben Slimane, Mourad},
     title = {Crit\`ere de r\'egularit\'e directionnelle},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {385--389},
     publisher = {Elsevier},
     volume = {349},
     number = {7-8},
     year = {2011},
     doi = {10.1016/j.crma.2011.01.030},
     language = {fr},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2011.01.030/}
}