Columbia subject headings:
Harvard subject headings:
Poets, Austrian--Biography.
Poets, Austrian--Portraits.
Poets, German--Biography.
Poets, German--Portraits.
Poets, Swiss--Biography.
Poets, Swiss--Portraits.
Portraits, German.
Princeton subject headings:
Poets, Austrian--Biography.
Poets, Austrian--Portraits.
Poets, German--Biography.
Poets, German--Portraits.
Poets, Swiss--Biography.
Poets, Swiss--Portraits.
Portraits, German.
Portraits.