[1]
L. Xu, Y. Han, L.-D. Zhou, G. Yao, Mansoor, C. Chen, and J. Pan, “Novel Phase-Locked Loop Using Adaptive Notch Filter”, ELEKTRON ELEKTROTECH, vol. 92, no. 4, pp. 7–12, Apr. 2009, doi: 10.5755/j02.eie.10215.