Columbia subject headings:
Kursk, Battle of, Russia, 1943.
Orel, Battle of, Orel, Orlovskai͡a oblastʹ, Russia, 1943.
Harvard subject headings:
Kursk, Battle of, Russia, 1943.
Orel, Battle of, Orel, Orlovskai͡a oblastʹ, Russia, 1943.
Princeton subject headings: