JĘDRAL, Waldemar.
 ENERGY - SAVING METHODS IN THE OPERATION OF PUMPS IN MUNICIPAL PUMPING STATIONS.
<strong>Journal of Power Technologies</strong>, [S.l.], v. 88, p. 71-87, mar. 2011.
ISSN 2083-4195.
Available at: &lt;<a href="https://papers.itc.pw.edu.pl/index.php/JPT/article/view/219" target="_new">https://papers.itc.pw.edu.pl/index.php/JPT/article/view/219</a>&gt;. Date accessed: 23 apr. 2024.