@article{PPN236020595+dmdlog311, title = {BESSEL an GAUSS, Winter 1822/23}, booktitle = {Nachtraege zur Physik, Chronologie und Astronomie Bd.11, Abt.1}, series = {GDML\_Books}, year = {1927}, pages = {427}, url = {http://dml.mathdoc.fr/item/PPN236020595+dmdlog311} }
(éd.). BESSEL an GAUSS, Winter 1822/23, dans Nachtraege zur Physik, Chronologie und Astronomie Bd.11, Abt.1, GDML_Books, (1927), p. 427. http://gdmltest.u-ga.fr/item/PPN236020595+dmdlog311/