TY - CPAPER KW - Invited AU - Lucia Reining BT - International workshop~Total energy methods in computational condensed matter~, Tenerife (Spain) DA - 01 PY - 2002 T2 - International workshop~Total energy methods in computational condensed matter~, Tenerife (Spain) TI - Effects of long-range interactions in the absorption and loss spectra of finite and infinite systems ER -