@article{JRAM_1883__94_148540,
     author = {P. du Bois-Reymond},
     title = {Ueber das {Doppelintegral.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {273--290},
     publisher = {mathdoc},
     volume = {94},
     year = {1883},
     zbl = {15.0219.01},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1883__94_148540/}
}