1. Introductory Numerical Analysis of Elliptic Boundary Value Problems;Greenspan,1965
2. Lectures on the Numerical Solution of Linear, Singular and Nonlinear Differential Equations;Greenspan,1968
3. Numerical Methods for Partial Differential Equations;Ames,1977
4. High order difference schemes for linear partial differential equations;Manohar;SIAM J. Sci. Stat. Comput.,1984
5. A fourth-order Poisson solver;Gupta;J. Comput. Phys.,1984