TY - JOUR AU - Apostol Poceski TI - From deformation to mixed and hybrid formulation of the finite element method JO - Theoretical and applied mechanics PY - 1979 SP - 135 VL - 5 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TAM_1979_5_1_a13/ LA - en ID - TAM_1979_5_1_a13 ER -