1. Alefeld, G., Varga, R.S.: Zur konvergenz des Symmetrischen Relaxationsverfahrens. Numer. Math.25, 291?295 (1976)
2. Krishna, L.B.: Asymptotic rates of convergence for the Symmetric Successive Overrelaxation method. Ph. D. Thesis. Kent State University, Ohio, 1979
3. Ostrowski, A.M.: Über die Determinanten mit überwiegender Hauptdiagonale. Comment. Math. Helv.10, 69?96 (1937)
4. Varga, R.S.: Extensions of the Successive Overrelaxation Theory with Applications to Finite Element Approximations: Topics in Numerical Analysis, pp. 329?343. New York: Academic Press 1973
5. Varga, R.S.: Matrix Iterative Analysis. New Jersey: Prentice-Hall 1962