Columbia subject headings:
Kokoschka, Oskar, 1886-1980--Exhibitions.
Mahler, Alma, 1879-1964.
Harvard subject headings:
Princeton subject headings:
Artist couples--Austria--Biography.
Kokoschka, Oskar, 1886---Exhibitions.
Kokoschka, Oskar, 1886-1980.
Mahler, Alma, 1879-1964--Portraits--Exhibitions.
Mahler, Alma, 1879-1964.