@article{ELMA_1946__1_140429,
     author = {Paul Rossier},
     title = {Relation entre un th\'eor\`eme de {Darboux} et un th\'eor\`eme de {Poncelet.}},
     journal = {Elemente der Mathematik},
     pages = {31--32},
     publisher = {mathdoc},
     volume = {1},
     year = {1946},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1946__1_140429/}
}