Title: Izuchenie reki Obi i ee pritokov v svi︠a︡zi s khozi︠a︡ĭstvennym osvoeniem Zapadnoĭ Sibiri
Subjects: Freshwater ecology, Freshwater animals, Economic policy
Places: Russia (Federation), Obʹ River Region, Obʹ River Region (Russia), Siberia, Western (Russia)