@article{JRAM_1884__97_148581,
     author = {H. von Helmholtz},
     title = {Principien der {Statik} monocyclischer {Systeme.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {111--140},
     publisher = {mathdoc},
     volume = {97},
     year = {1884},
     zbl = {16.0854.02},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1884__97_148581/}
}