%0 Journal Article %A Apostol Poceski %T From deformation to mixed and hybrid formulation of the finite element method %J Theoretical and applied mechanics %D 1979 %P 135 %V 5 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAM_1979_5_1_a13/ %G en %F TAM_1979_5_1_a13