Orel Vadym Igorovych. Influence of the polyacrylamide additives on the pressure losses of sudden narrowings and expansions in pipes : к.т.н. : spec.. 05.23.16 - Гідравліка та інженерна гідрологія : presented. 2003-06-13; popup.evolution: .; Ukrainian state university of water management and natural resources application. – , 0403U002352.

Updated: 2026-11-08