1. A. A. Samarskii, The Theory of Difference Schemes (Nauka, Moscow, 1989; Marcel Dekker, New York, 2001).
2. P. Khabner and L. Angermann, Numerical Methods for Elliptic and Parabolic Partial Differential Equations (Springer, Berlin, 2003).
3. A. A. Samarskii and A. V. Gulin, Stability of Finite Difference Schemes (Nauka, Moscow, 1973) [in Russian].
4. A. A. Samarskii, P. P. Matus, and P. N. Vabishchevich, Difference Schemes with Operator Factors (Kluwer Academic, Dordrecht, 2002).
5. K. W. Morton and R. B. Kellogg, Numerical Solution of Convection-Diffusion Problems (Chapman and Hall, London, 1996).