@Article{ars-4-41-2006,
AUTHOR = {Eibert, T. F.},
TITLE = {A multilevel fast spectral domain algorithm for electromagnetic analysis of               infinite periodic arrays with large unit cells},
JOURNAL = {Advances in Radio Science},
VOLUME = {4},
YEAR = {2006},
PAGES = {41--47},
URL = {http://www.adv-radio-sci.net/4/41/2006/},
ISSN = {1684-9965}
}