TY - CPAPER TI - Subbands, exchange and correlation effects on collective excitations in parabolic quantum well wires PY - 1995 AU - Borges, A N AU - HipĆ³lito, Oscar AU - Leao, S A T2 - Encontro Nacional de Fisica da Materia Condensada J2 - Resumos PP - Sao Paulo PB - Sociedade Brasileira de Fisica ER -