Lipnicki, Piotr. “OVERVIEW OF METHODS FOR SYNCHRONIZING WITH THE POWER GIRD (PLL) FOR POWER CONVERTERS”. Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska 3, no. 2 (May 16, 2013): 5–8. Accessed April 20, 2024. https://ph.pollub.pl/index.php/iapgos/article/view/1444.