Columbia subject headings:
Art historians--Germany--Biography--Congresses.
Burchard, Ludwig, 1886-1960--Congresses.
Burchard, Ludwig, 1886-1960. Corpus Rubenianum Ludwig Burchard--Congresses.
Painting, Flemish--17th century--Historiography--Congresses.
Rubenianum--History--Congresses.
Rubens, Peter Paul, 1577-1640--Criticism and interpretation--History--20th century--Congresses.
Harvard subject headings:
Art historians--Germany--Congresses.
Art--Historiography--Congresses
Burchard, Ludwig, 1886-1960--Congresses.
Rubens, Peter Paul, 1577-1640--Congresses.
Princeton subject headings:
Art historians--Biography.
Burchard, Ludwig, 1886-1960.
Rubens, Peter Paul, Sir, 1577-1640--Criticism and interpretation.