• J. Bouchala, J. Zapletal: Variational methods, am.vsb.cz/bouchala
• S. C. Brenner, L. R. Scott: The Mathematical Theory of Finite Element Methods, Springer, 2008
• I. Hlaváček, J. Haslinger, J. Nečas, J. Lovíšek: Solution of Variational Inequalities in Mechanics, Springer-Verlag, 1988
• O. Steinbach: Numerical Approximation Methods for Elliptic Boundary Value Problems, Springer, 2003
• W. McLean: Strongly Elliptic Systems and Boundary Integral Equations, Cambridge University Press, 2000