Viktorov, V. H., V. V. Kravets, V. A. Kholoimov, and Y. V. Khrystian. “THE USE OF A METHOD OF LIFT PUMP FOR CIRCULATING SOLUTION IN THE CHEMICAL DESCALING OF THE BOILER DKVR-4/13”. Science and Transport Progress, no. 4, Aug. 2004, pp. 12-16, doi:10.15802/stp2004/20528.