H, Thejusraj., Prithivi Raj, J Selvakumar, and S Praveen Kumar. “Design of High Frequency Voltage Controlled Oscillators for Phase Locked Loop”.
International Journal of Engineering and Technology 7, no. 3.12 (July 20, 2018): 871–875. Accessed April 28, 2025.
https://sciencepubco.com/index.php/IJET/article/view/16553.