Columbia subject headings:
Harvard subject headings:
Austro-Hungarian Monarchy. Heer--History--19th century.
Austro-Hungarian Monarchy. Heer--History--20th century.
Austro-Hungarian Monarchy. Heer.
Bosnia and Herzegovina--Ethnic relations.
Bosnia and Herzegovina--History--1878-1918.
World War, 1914-1918--Campaigns--Bosnia and Herzegovina
Princeton subject headings:
Austria--History, Military.
Bosnia and Herzegovina--Armed forces.
Yugoslavia--History, Military.