TY - CPAPER KW - Invited AU - Lucia Reining BT - Sanibel Symposium, University of Florida Quantum Theory Project (USA) DA - 02/22-03/01 PY - 2003 T2 - Sanibel Symposium, University of Florida Quantum Theory Project (USA) TI - Electron-hole excitations in the quasiparticle picture and in the density-functional framework ER -