Columbia subject headings:
Authors, German--20th century--Biography.
Keilson, Hans, 1909-2011--Diaries.
Sonnets, German.
Harvard subject headings:
Authors, German--20th century--Biography
Holocaust, Jewish (1939-1945)--Netherlands--Delft--Personal narratives.
Jews, German--Netherlands--Biography.
Keilson, Hans, 1909-2011--Diaries.
Sonnets, German.
Princeton subject headings:
Authors, German--20th century--Biography.
Diaries.
Keilson, Hans, 1909-2011--Diaries.
Poetry.
Sonnets, German.