Larsson, S. & Thomee, V.: Partial Differential Equations with Numerical Methods. Springer Science & Business Media, 2008. ISBN 9783540887058.
Renardy, M. & Rogers, Robert C.: An Introduction to Partial Differential Equations. ISBN 9783540979524.
Brenner, Susanne C. & Scott, L. Ridgway: The Mathematical Theory of Finite Element Methods. ISBN 9783540941934.
Ciarlet, Philippe G.: The Finite Element Method for Elliptic Problems. North-Holland, 1978. ISBN 9780444850287.
Thomee, V.: Galerkin Finite Element Methods for Parabolic Problems. Springer, 2006. ISBN 9783540331216.