TY - JOUR AU - D. Bucur AU - J.-P. Zolesio TI - Spectrum Stability of an Elliptic Operator to Domain Perturbations JO - Journal of convex analysis PY - 1998 SP - 019 EP - 03 VL - 5 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JCA_1998_5_1_a1/ ID - JCA_1998_5_1_a1 ER -