Title: Problema rekonstruk͡tsii basseĭna reki Oki
Subjects: Economic conditions, Power resources, Water resources development
Places: Oka River (Kurska͡ia oblastʹ-Nizhegorodska͡ia oblastʹ, Russia), Russia (Federation), Oka River (Kurska͡ia oblastʹ-Nizhegorodska͡ia oblastʹ)