[1] A.  Ženíšek: 
Nonlinear Elliptic and Evolution Problems and Their Finite Element Approximations. Computational Mathematics and Applications. Academic Press, London, 1990. 
MR 1086876 
[2] A.  Ženíšek: Sobolev Spaces and Their Applications in the Finite Element Method. Brno University of Technology, VUTIUM PRESS, , 2005.