Columbia subject headings:
Children--Germany--Biography.
Germany--History--1933-1945.
Wollenberg, E. (Ernst)
World War, 1939-1945--Children--Germany.
World War, 1939-1945--Germany.
World War, 1939-1945--Personal narratives, German.
Harvard subject headings:
Wollenberg, E. (Ernst)
World War, 1939-1945--Children--Germany.
World War, 1939-1945--Personal narratives, German.
Princeton subject headings:
World War, 1939-1945--Campaigns--Germany.
World War, 1939-1945--Personal narratives, German.