Xu, L., Han, Y., Zhou, L.-D., Yao, Mansoor, G., Chen, C. and Pan, J. (2009) “Novel Phase-Locked Loop Using Adaptive Notch Filter”, Elektronika ir Elektrotechnika, 92(4), pp. 7-12. Available at: https://eejournal.ktu.lt/index.php/elt/article/view/10215 (Accessed: 7October2022).