1. Carter, B., Brown, T.R., 2001. Handbook of Operational Amplifier Applications. Texas Instruments Application Report, SBOA092A.
2. Collin, R.E., 1992. Foundations for Microwave Engineering (2nd Ed.). McGraw-Hill, New York, p.552–556, 570.
3. Eleftheriades, G.V., Iyer, A.K., Kremer, P.C., 2002. Planar negative refractive index media using periodically L-C loaded transmission lines. IEEE Trans. on Micro. Theory Tech., 50(12):2702–2712. [doi:10.1109/TMTT.2002.805197]
4. Horowitz, P., Hill, W., 1993. The Art of Electronics (2nd Ed.). Chapter 5. Cambridge University Press.
5. Iyer, A.K., Eleftheriades, G.V., 2002. Negative Refractive Index Metamaterials Supporting 2-D Waves. Proc. IEEE Int. Symp. Microwave Theory and Tech., 2:1067–1070. [doi:10.1109/MWSYM.2002.1011823]