TY - GEN A1 - Kleefeld, Johann Gottfried (1763-1845) L2 - http://pbc.gda.pl/Content/72972 KW - meteorology KW - manuscript KW - Naturforschende Gesellschaft in Danzig KW - GdaƄsk (Poland ; city) T1 - Kleefelds Beobachtungen 1811 UR - http://pbc.gda.pl/dlibra/publication/edition/72972 ER -