1. Differencing scheme for a differential equation with a small parameter affecting the highest derivative;II'in;Math. Notes,1969
2. Finite Element Solutions of Boundary Value Problems; Theory and Computation;Axelsson,1984
3. Grading functions and mesh redistribution;Carey;SIAM Rev.,1985
4. An Analysis of the Finite Element Method;Strang,1973
5. Gershgorin theory for analysis of semi-discrete evolution systems;Carey;Comput. Meths. Appl. Mech. Engrg.,1980