@article{JRAM_1908__133_149275,
     author = {Paul Appell},
     title = {Sur la tendance des syst\`emes mat\'eriels \`a \'echapper au frottement.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {93--96},
     publisher = {mathdoc},
     volume = {133},
     year = {1908},
     zbl = {38.0737.01},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1908__133_149275/}
}