@article{10_4064_cm_42_1_395_404, author = { }, title = {Probl\`emes}, journal = {Colloquium Mathematicum}, pages = {395--404}, publisher = {mathdoc}, volume = {42}, number = {1}, year = {1979}, doi = {10.4064/cm-42-1-395-404}, language = {fr}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-42-1-395-404/} }