Columbia subject headings:
Harvard subject headings:
Illustrators--Austria--Correspondence.
Kindlimann, Cäcilia--Correspondence.
Kubin, Alfred, 1877-1959--Correspondence.
Princeton subject headings:
Kindlimann, Cäcilia, 1908-1966--Correspondence.
Kubin, Alfred, 1877-1959--Correspondence.
Personal correspondence.