@misc{JRAM_1851__41_147481,
     title = {Pendule \`a mouvement perp\'etuel.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {217--226},
     publisher = {mathdoc},
     volume = {41},
     year = {1851},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1851__41_147481/}
}