@incollection{, D2431A625A23939D8FACF4469124729F , author={{Dr. Ivan A.Loukanov} and {JacekUziak} and {Dr. Ivan A.Loukanov} and {University of Botswana}}, journal={{Global Journal of Researches in Engineering}}, journal={{GJRE}}2249-45960975-586110.34257/gjre, address={Cambridge, United States}, publisher={Global Journals Organisation}1177378 } @book{b0, , title={{Investigating the pumping process of a resonance vibrating pump for medium-depth boreholes Research in Agricultural Engineering}} , author={{ IALoukanov }} , year={2007} 53 } @incollection{b1, , title={{Measuring the Parameters of Foot Valves for Sonic Pumps}} , author={{ IALoukanov }} , journal={{Journal of Emerging Trend in Engineering and Applied Sciences}} 1 , year={2010} } @incollection{b2, , title={{On the operating cycle of a vibrating pump}} , author={{ ACVirnovskii } and { OETzinkova }} , journal={{Oil Industry}} 10 , year={1965} } @book{b3, , title={{Inertia Pumps}} , author={{ VMUsakovskii }} , year={1973} , publisher={Machine-Building Publishing House} , address={Moscow} }