Columbia subject headings:
Harvard subject headings:
Aeronautics--Germany--Biography--Exhibitions.
Lilienthal, Otto, 1848-1896--Exhibitions.
Otto-Lilienthal-Museum--Catalogs.
Photography of airplanes--Exhibitions.
Princeton subject headings:
Aeronautics--Germany--Biography--Exhibitions.
Lilienthal, Otto, 1848-1896--Exhibitions.
Otto-Lilienthal-Museum--Catalogs.
Photography of airplanes--Exhibitions.