@article{MOMA_1962__66_177154,
     author = {O. Bottema},
     title = {Beispiele zum {Hamiltonischen} {Prinzip.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {97--104},
     publisher = {mathdoc},
     volume = {66},
     year = {1962},
     zbl = {0104.18003},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1962__66_177154/}
}