Columbia subject headings:
Hajek, Otto Herbert, 1927-2005--Catalogs.
Harvard subject headings:
Hajek, Otto Herbert, 1927-2005--Criticism and interpretation.
Hajek, Otto Herbert, 1927-2005--Exhibitions.
Princeton subject headings:
Hajek, Otto Herbert, 1927-2005--Criticism and interpretation.
Hajek, Otto Herbert, 1927-2005--Exhibitions.