TY - GEN A1 - Kleefeld, Johann Gottfried (1763-1845) L2 - http://pbc.gda.pl/Content/49401 KW - manuscript KW - meteorology KW - GdaƄsk (Poland ; city) KW - Naturforschende Gesellschaft in Danzig T1 - Meteorologische Beobachtungen 1837-1841 UR - http://pbc.gda.pl/dlibra/publication/edition/49401 ER -