@book{bhlitem41600, title = {Abhandlungen der physikalischen Klasse der Königlich-Preussischen Akademie der Wissenschaften }, volume = {1820-21}, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/41600}, note = {https://www.biodiversitylibrary.org/bibliography/10599}, publisher = {Berlin, Realschul-Buchhandlung, }, author = {Königlich Preussische Akademie der Wissenschaften zu Berlin}, year = {1820}, pages = {586}, }