@article{JRAM_1969__238_183504,
     author = {Claude A. Burdet},
     title = {Le mouvement {Keplerien} et les oscillateurs harmoniques.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {71--84},
     publisher = {mathdoc},
     volume = {238},
     year = {1969},
     zbl = {0193.25101},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1969__238_183504/}
}