@article{MAN_1882__20_157040,
     author = {Bruns},
     title = {Ueber eine {Minimumsaufgabe}},
     journal = {Mathematische Annalen},
     pages = {455--460},
     publisher = {mathdoc},
     volume = {20},
     year = {1882},
     url = {http://geodesic.mathdoc.fr/item/MAN_1882__20_157040/}
}