Kritphon Phanruttanachai and Winai Jaikla, Third Order Current-mode Quadrature Sinusoidal Oscillator with High Output Impedances. journal = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology. March 2013, vol. 75(3). 300 - 303 [viewed 19 September 2024]. Available from: https://publications.waset.org/pdf/723.