Columbia subject headings:
Biographies.
Middle East specialists--Biography.
Tychsen, Oluf Gerhard, 1734-1815.
Harvard subject headings:
Asianists--Germany--Rostock--Congresses.
Biographies
Scholars--Germany--Rostock--Congresses.
Tychsen, Oluf Gerhard, 1734-1815--Congresses.
Princeton subject headings:
Biographies.
Middle East specialists--Biography.
Tychsen, Oluf Gerhard, 1734-1815.