1. Resistance-capacitance networks with over unity gain;Bacon W.;Wirel. Eng.,1953
2. Synthesis of passive RC networks with gains greater than unity;Epstein H.;Proc. IRE,1951
3. Gain from passives?;Hickman I.;Electron. World,1996
4. An RC circuit giving over unity gain;Longmuire C. L.;Tele. Tech.,1947
5. Filters with decreased passband error;Mitros P.;IEEE Trans. Circ. Syst.,2016