Bank, Randolph E., PLTMG: A Software Package for Solving Elliptic Partial Differential Equations, User's Guide 6.0, Society for Industrial and Applied Mathematics, Philadelphia, PA, 1990.
 Dahlquist, Germund, and Björk, Åke, Numerical Methods, 2nd edition, 1995, in print.
 Golub, Gene H., and Charles F. Van Loan, Matrix Computations, 2nd edition, John Hopkins University Press, Baltimore, MD, 1989.
 George, P.L., Automatic Mesh Generation — Application to Finite Element Methods, Wiley, 1991.
 Johnson, C., Numerical Solution of Partial Differential Equations by the Finite Element Method, Studentlitteratur, Lund, Sweden, 1987.
 Johnson, C., and Eriksson, K., Adaptive Finite Element Methods for Parabolic Problems I: A Linear Model Problem, SIAM J. Numer. Anal, 28, (1991), pp. 43–77.
 Saad, Yousef, Variations on Arnoldi's Method for Computing Eigenelements of Large Unsymmetric Matrices, Linear Algebra and its Applications, Vol 34, 1980, pp. 269–295.
 Rosenberg, I.G., and F. Stenger, A lower bound on the angles of triangles constructed by bisecting the longest side, Math. Comp. 29 (1975), pp 390–395.
 Strang, Gilbert, Introduction to Applied Mathematics, Wellesley-Cambridge Press, Cambridge, MA, 1986.
 Strang, Gilbert, and Fix, George, An Analysis of the Finite Element Method, Prentice-Hall Englewood Cliffs, N.J., USA, 1973.