[1]
J. Koton, N. Herencsar, and J.-W. Horng, “Differential Second-Order Voltage-Mode All-Pass Filter Using Current Conveyors”, ELEKTRON ELEKTROTECH, vol. 22, no. 5, pp. 52–57, Oct. 2016, doi: 10.5755/j01.eie.22.5.16344.