@article{MAN_1879__15_156859,
     author = {Du Bois-Reymond},
     title = {Erl\"auterungen zu den {Anfangsgr\"unden} der {Variationsrechnung}},
     journal = {Mathematische Annalen},
     pages = {283--314},
     publisher = {mathdoc},
     volume = {15},
     year = {1879},
     url = {http://geodesic.mathdoc.fr/item/MAN_1879__15_156859/}
}