WASET
    Prungsak Uttaphut,  Realization of Electronically Tunable Current- Mode Multiphase Sinusoidal Oscillators Using CFTAs.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2012, vol. 69(9). 985 - 988
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/6037.