Title: Sozdanie ėkologicheski chistykh malootkhodnykh tekhnologiĭ v proizvodstve ti︠a︡zhelykh t︠s︡vetnykh metallov i povyshenie kompleksnosti ispolʹzovanii︠a︡ syrʹi︠a︡
Subjects: Nonferrous metals, Metallurgy, Congresses