Stano, Sebastian, Roman Kustosz, Artur Kapis, Przemysław Kurtyka, Jerzy Zalewski, and Magda Zarwańska. “Influence of the Laser Welding Process on Changes in the Magnetic Induction of the Religa Heart ROT Pump”. Welding Technology Review 91, no. 4 (June 20, 2019). Accessed December 13, 2019. http://pspaw.pl/index.php/pspaw/article/view/1031.