@misc{Kleefeld_Johann_Gottfried_(1763-1845)_Kleefelds, author={Kleefeld, Johann Gottfried (1763-1845)}, howpublished={online}, language={ger}, type={manuscripts}, title={Kleefelds Beobachtungen 1843}, keywords={meteorology, manuscript, GdaƄsk (Poland ; city), Naturforschende Gesellschaft in Danzig}, }