@inproceedings{Catelli_257_7-1998,
author = "C. Catelli and S. Selleri and M. Zoboli",
title = "The use of symmetry boundary conditions in electromagnetic waveguide problems described by sparse matrix finite element method",
month = "july",
year = "1998",
booktitle = "4th International Workshop on Finite Elements for Microwave Engineering",
address = "Poitiers, France",
}