@article{MAN_1904__59_158171,
     author = {Moritz R\'ethy},
     title = {Das {Ostwaldsche} {Prinzip} vom {Energieumsatz} in der {Mechanik}},
     journal = {Mathematische Annalen},
     pages = {554--571},
     year = {1904},
     volume = {59},
     zbl = {35.0714.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1904__59_158171/}
}