@article{ELMA_1947__2_140463,
     author = {Georges De Rham},
     title = {Un peu de math\'ematiques \`a propos d'une courbe plane.},
     journal = {Elemente der Mathematik},
     pages = {73--76},
     publisher = {mathdoc},
     volume = {2},
     year = {1947},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1947__2_140463/}
}