@article{PPN236006339+dmdlog58, title = {\"Uber Kugelfunctionen}, booktitle = {Mathematische Physik Bd. 5}, series = {GDML\_Books}, year = {1867}, pages = {630}, url = {http://dml.mathdoc.fr/item/PPN236006339+dmdlog58} }
(éd.). Über Kugelfunctionen, dans Mathematische Physik Bd. 5, GDML_Books, (1867), p. 630. http://gdmltest.u-ga.fr/item/PPN236006339+dmdlog58/