Ramirez Cerpa, Elkin Duban ; Sanchez Dams, Ruben Dario ; Simancas García, Jose Leonardo..
Biolek, D., Senani, R., Biolkova, V., and Kolka, Z. (2008). Active elements for analog signal processing: Classification, review, and new proposals Radioengineering. 17(4):15–32. Boylestad R. L. and Nashelsky L. (2003). Electrónica: teoría de circuitos y dispositivos electrónicos. México: Pearson Educación Boylestad, R. L. (2013). Introductory Circuit Analysis. Pearson Education, Limited. Bruton L. T. (1969). Network Transfer Functions Using the Concept of Frequency-Dependent Negative Resistance. IEEE Trans. Circuit Theory. 16(3):406–408. Bruton V. and Treleaven D. (1973). Electrical noise in low-pass FDNR filters. Circuit Theory, IEEE Trans. 20(2):154–158. Cooperman M. and Kapral C. W. (1983), Integrated switched-capacitor FDNR filter. Solid-State Circuits, IEEE J. 18(4):378–383. Corron, N. J., and Hahs, D. W. (1997). A new approach to communications using chaotic signals. Circuits Syst. I Fundam. Theory Appl. IEEE Trans. 4....  , 2017