@article{CMH_1947__20_138916,
     author = {F.E.G. Rodeja},
     title = {Aire de {l'Ellipse} d\'etermin\'ee par cinq points.},
     journal = {Commentarii mathematici Helvetici},
     pages = {172--176},
     publisher = {mathdoc},
     volume = {20},
     year = {1947},
     zbl = {0034.38501},
     url = {http://geodesic.mathdoc.fr/item/CMH_1947__20_138916/}
}