%0 Journal Article %A Hlaváček, Ivan %A Křížek, Michal %T Internal finite element approximation in the dual variational method for the biharmonic problem %J Applications of Mathematics %D 1985 %P 255-273 %V 30 %N 4 %I mathdoc %U https://geodesic-test.mathdoc.fr/articles/10.21136/AM.1985.104149/ %R 10.21136/AM.1985.104149 %G en %F 10_21136_AM_1985_104149