APA

Kovyazina A. E., Lotov V. A. & Maletina L. V.Nepheline sludge is a feedstock for building materials. : .

Chicago

Kovyazina A E, Lotov V A and Maletina L V.Nepheline sludge is a feedstock for building materials. : .

Harvard

Kovyazina A. E., Lotov V. A. and Maletina L. V.Nepheline sludge is a feedstock for building materials. : .

MLA

Kovyazina A E, Lotov V A and Maletina L V.: . .