TY - JOUR T1 - An efficient two-level preconditioner based on lifting for FEM-BEM equations JO - Journal of Microwaves, Optoelectronics and Electromagnetic Applications A1 - Pereira, Fabio Henrique A1 - Afonso, Marcio Matias A1 - Vasconcelos, João Antônio de A1 - Nabeta, Silvio Ikuyo SN - 2179-1074 UL - 10.1590/S2179-10742010000200002 VL - 9 Y1 - 2010 PB - Brasil ER -