N. Dizadji and  P. Entezar and  A. Shabani,  Energy Savings in Pumps.   journal   = {International Journal of Mechanical and Industrial Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2012, vol. 61(1). 312 - 315
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/15410.