Kajanek D, Hadzima B, Pastorek F. Errata: Communications – Scientific Letters of the University of Zilina, Vol. 20, No. 3, 2018, „Electrochemical Characterization of Az31 Magnesium Alloy Treated by Ultrasonic Impact Peening (Uip)“, pp. 24-29. The proper Acknowledgement should be as follow. Communications [Internet]. 2019Feb.20 [cited 2026Apr.5];21(1):75-9. Available from: http://journals.uniza.sk/index.php/communications/article/view/646