1. Binns, K.J. and Lawrenson, P.J. (1975), Analysis and Computation of Electric and Magnetic Field Problems, Pergamon Press, 2nd edition.
2. Muller, W. (1982), “A new iteration method for solving stationary eddy current problems using the method of finite differences”, IEEE Transactions on Magnetics, Vol. MAG-18, No. 2, pp. 588–593.
3. Trutt, F.C. Erdelyi, E.A. and Jackson, R.F. (1963), “The non-linear potential equation and its numerical solution for highly saturated electrical machines”, IEEE Transactions on Aerospace, Vol. 1, pp. 430–440.
4. Southwell, R.V. (1940), Relaxation Methods in Engineering Science, Oxford University Press, Oxford.
5. Motz, H. and Worthy, W.D. (1945), “Calculation of the magnetic field in dynamoelectric machines using Southwell’s relaxation method”, Journal IEE, Vol. 92, Pt. 2, pp. 522–528.