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@article{MAN_1879__14_156839, author = {Lommel}, title = {Zur {Theorie} der {Bessel'schen} {Functionen}}, journal = {Mathematische Annalen}, pages = {510--536}, publisher = {mathdoc}, volume = {14}, year = {1879}, language = {de}, url = {http://geodesic.mathdoc.fr/item/MAN_1879__14_156839/} }
Lommel. Zur Theorie der Bessel'schen Functionen. Mathematische Annalen, Tome 14 (1879), pp. 510-536. http://geodesic.mathdoc.fr/item/MAN_1879__14_156839/