@article{PPN236020595+dmdlog312, title = {OLBERS an GAUSS, 1823 Mai 30}, booktitle = {Nachtraege zur Physik, Chronologie und Astronomie Bd.11, Abt.1}, series = {GDML\_Books}, year = {1927}, pages = {428}, url = {http://dml.mathdoc.fr/item/PPN236020595+dmdlog312} }
(éd.). OLBERS an GAUSS, 1823 Mai 30, dans Nachtraege zur Physik, Chronologie und Astronomie Bd.11, Abt.1, GDML_Books, (1927), p. 428. http://gdmltest.u-ga.fr/item/PPN236020595+dmdlog312/