TY - JOUR AU - Chleboun, Jan TI - Hybrid variational formulation of an elliptic state equation applied to an optimal shape problem JO - Kybernetika PY - 1993 SP - 231 EP - 248 VL - 29 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_1993__29_3_a3/ LA - en ID - KYB_1993__29_3_a3 ER -