Columbia subject headings:
Harvard subject headings:
Ukraine--History--1917-
World War, 1914-1918--Ukraine.
World War, 1939-1945--Occupied territories.
Princeton subject headings:
Austria--Foreign relations--Ukraine.
Germany--Foreign relations--Ukraine.
Ukraine--Foreign relations--Austria.
Ukraine--Foreign relations--Germany.
Ukraine--History--1917-
Ukraine--History--Revolution, 1917-1921.
World War, 1914-1918--Ukraine.