@article{10_4064_cm_13_1_125_128, author = { }, title = {Probl\`emes}, journal = {Colloquium Mathematicum}, pages = {125--128}, publisher = {mathdoc}, volume = {13}, number = {1}, year = {1964}, doi = {10.4064/cm-13-1-125-128}, language = {fr}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-13-1-125-128/} }