JĘDRAL, Waldemar. ENERGY - SAVING METHODS IN THE OPERATION OF PUMPS IN MUNICIPAL PUMPING STATIONS. Journal of Power Technologies, [S.l.], v. 88, p. 71-87, mar. 2011. ISSN 2083-4195. Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/219>. Date accessed: 21 nov. 2024.