@article{MAN_1871__4_156519,
     author = {Lommel},
     title = {Zur {Theorie} der {Bessel'schen} {Functionen}},
     journal = {Mathematische Annalen},
     pages = {103--116},
     publisher = {mathdoc},
     volume = {4},
     year = {1871},
     zbl = {03.0221.04},
     url = {http://geodesic.mathdoc.fr/item/MAN_1871__4_156519/}
}