@misc{Kleefeld_Johann_Gottfried_(1763-1845)_Meteorologische, author={Kleefeld, Johann Gottfried (1763-1845)}, howpublished={online}, language={ger}, type={manuscripts}, title={Meteorologische Beobachtungen 1837-1841}, keywords={manuscript, meteorology, GdaƄsk (Poland ; city), Naturforschende Gesellschaft in Danzig}, }