1. Survey lectures on the mathematical foundations of the finite element method;Babuska,1972
2. Numerically Solving Polynomial Systems with Bertini;Bates,2013
3. Multigrid Techniques: 1984 Guide with Applications to Fluid Dynamics;Brandt,2011
4. The Mathematical Theory of Finite Element Methods;Brenner,2008
5. Multiple solutions for a semilinear boundary value problem: a computational multiplicity proof;Breuer;J. Differ. Equ.,2003