1. Device modeling via basic nonlinear circuit elements;Chua;IEEE Trans. Circuits Syst.,1980
2. Synthesis of higher-order nonlinear circuit elements;Chua;ERL Memo M8217,1982
3. Energy concepts in the state space theory of nonlinear n-ports: Part I—Passivity;Wyatt;IEEE Trans. Circuits Syst.,1981
4. Foundations of nonlinear network theory: Part II—Losslessness;Wyatt;Memo. No. UCB/ERL M80/3,1980