1. Toward a (more) practical control theory for distributed parameter systems;Balas,1982
2. An Analysis of the Finite Element Method;Strang,1973
3. An Introduction to the Mathematical Theory of Finite Elements;Oden,1976
4. Finite Element Galerkin Methods for Differential Equations;Fairweather,1978
5. Methods for time-dependent partial differential equations;Oliger,1978