1. EESOF INC.‘EEsof model libraries, user's guide’, May 1991
2. Kunz, K.S., and Luebbers, R.J.: ‘The finite difference time domain method for electromagnetics’, (CRC Press 1993)
3. Taflove, A.: ‘Computational electrodynamics, the finite-difference time-domain method’, (Artech House 1995)
4. Kron, G.: ‘Diakoptics-the piecewise solution of large scale systems’, (Mcdonald Press 1963)