Sotner R, Jerabek J, Petrzela J, Herencsar N, Prokop R, Vrba K. Second-Order Simple Multiphase Oscillator Using Z-Copy Controlled-Gain Voltage Differencing Current Conveyor. ELEKTRON ELEKTROTECH [Internet]. 2014Nov.17 [cited 2024Apr.20];20(9):13-8. Available from: https://eejournal.ktu.lt/index.php/elt/article/view/8709