TY - CPAPER KW - Invited AU - Lucia Reining BT - CECAM workshop Electronic properties of strongly correlated systems, Lyon (France) DA - 07 PY - 2001 T2 - CECAM workshop Electronic properties of strongly correlated systems, Lyon (France) TI - Exchange and correlation treated using the GW and Bethe-Salpeter approaches for the calculation of excited states ER -