Columbia subject headings:
Art, Modern--19th century--Exhibitions.
Art, Modern--20th century--Exhibitions.
Art--Germany--Frankfurt am Main--History--Exhibitions.
Art--Germany--Rhein-Main Region--History--Exhibitions.
Artists--Travel--Germany--Frankfurt am Main--History--Exhibitions.
Artists--Travel--Germany--Rhein-Main Region--History--Exhibitions.
Frankfurt am Main (Germany)--Intellectual life--20th century--Exhibitions.
Harvard subject headings:
Art, Modern--19th century--Exhibitions
Art, Modern--20th century--Exhibitions
Art--Germany--Frankfurt am Main--History--Exhibitions.
Art--Germany--Rhein-Main Region--History--Exhibitions.
Artists--Travel--Germany--Frankfurt am Main--History--Exhibitions.
Artists--Travel--Germany--Rhein-Main Region--History--Exhibitions.
Frankfurt am Main (Germany)--Intellectual life--20th century--Exhibitions.
Princeton subject headings:
Art, Modern--19th century--Exhibitions.
Art, Modern--20th century--Exhibitions.
Art--Germany--Frankfurt am Main--History--Exhibitions.
Art--Germany--Rhein-Main Region--History--Exhibitions.
Artists--Travel--Germany--Frankfurt am Main--History--Exhibitions.
Artists--Travel--Germany--Rhein-Main Region--History--Exhibitions.
Frankfurt am Main (Germany)--Intellectual life--20th century--Exhibitions.