Columbia subject headings:
Harvard subject headings:
World War, 1914-1918--Campaigns--Eastern Front
Princeton subject headings:
Russia. Armii︠a︡. Dragunskīĭ Novorossīĭskīĭ Ei︠a︡ Imperatorskago Vysochestva Velikoĭ Kni︠a︡gini Eleny Vladimīrovny polk, 3-īĭ
World War, 1914-1918--Campaigns--Eastern Front.