@article{CRMATH_2007__344_7_453_0,
     author = {Mansouri, Abdol-Reza},
     title = {Obstructions topologiques aux distributions non-int\'egrables r\'eguli\`eres de rang 2},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {453--456},
     publisher = {Elsevier},
     volume = {344},
     number = {7},
     year = {2007},
     doi = {10.1016/j.crma.2007.02.012},
     language = {fr},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2007.02.012/}
}