%0 Journal Article %A Hlaváček, Ivan %T Dual finite element analysis for elliptic problems with obstacles on the boundary. I %J Applications of Mathematics %D 1977 %P 244-255 %V 22 %N 4 %I mathdoc %U https://geodesic-test.mathdoc.fr/articles/10.21136/AM.1977.103701/ %R 10.21136/AM.1977.103701 %G en %F 10_21136_AM_1977_103701