M. Yousefi and  N. Nasirzadeh,  Analysis of Injection-Lock in Oscillators versus Phase Variation of Injected Signal.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2016, vol. 115(7). 953 - 956
    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/10005040.