TY - JOUR T1 - Fast and Accurate Analysis of Large Meta-Material Structures Using the Multilevel Fast Multipole Algorithm A1 - Gurel, L. A1 - Ergul, O. A1 - Unal, A. A1 - Malas, T. JA - Progress in Electromeganetics Research Y1 - 2009 VL - 95 SP - 179 EP - 198 ER -