HASLINGER, Jaroslav Finite element method for hemivariational inequalities : theory, methods and applications / Jaroslav Haslinger, Markku Miettinen, Panagiotis D. PanagiotopoulosDordrecht : Kluwer Academic Publishers, 1999XXV, 260 p. : il. ; 25 cm(Nonconvex Optimization and its Applications / Panos Pardalos; 35).