@article{PPN236020595+dmdlog88, title = {18. GAUSS an GERLING, 1635 August 26}, booktitle = {Nachtraege zur Physik, Chronologie und Astronomie Bd.11, Abt.1}, series = {GDML\_Books}, year = {1927}, pages = {101}, url = {http://dml.mathdoc.fr/item/PPN236020595+dmdlog88} }
(éd.). 18. GAUSS an GERLING, 1635 August 26, dans Nachtraege zur Physik, Chronologie und Astronomie Bd.11, Abt.1, GDML_Books, (1927), p. 101. http://gdmltest.u-ga.fr/item/PPN236020595+dmdlog88/