Columbia subject headings:
Art thefts--Austria--History--20th century--Exhibitions.
Korty, Raoul, 1889-1944--Photograph collections--Exhibitions.
National socialism and art--Austria--Exhibitions.
Photograph collections--Austria--Vienna--Exhibitions.
Portrait photography--History--19th century--Exhibitions.
Portrait photography--History--20th century--Exhibitions.
Österreichische Nationalbibliothek. Bildarchiv--Exhibitions.
Harvard subject headings:
Korty, Raoul, 1889-1944--Photograph collections--Exhibitions.
Österreichische Nationalbibliothek--Photograph collections--Exhibitions.
Photograph collections--Austria--Vienna--Exhibitions.
Restitution--Austria--Vienna--Exhibitions.
Princeton subject headings: