TY - JOUR AU - Bejenaru, Ioan AU - Diaz, Jesus Ildefonso AU - Vrabie, Ioan I. TI - An abstract approximate controllability result and applications to elliptic and parabolic systems with dynamic boundary conditions JO - Electronic Journal of Differential Equations PY - 2001 VL - 2001 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2001__2001__a17/ LA - en ID - EJDE_2001__2001__a17 ER -