@article{MAN_1880__17_156915, author = {in Budapest K\"onig}, title = {Ueber {Reihenentwicklung} nach {Bessel'schen} {Functionen}}, journal = {Mathematische Annalen}, pages = {85--86}, year = {1880}, volume = {17}, language = {de}, url = {http://geodesic.mathdoc.fr/item/MAN_1880__17_156915/} }