Your query returned 2 results.

• Wave Spectral Finite Element Analysis of Two-Dimensional Waveguides,
  P.B. Silva and J.R.F. Arruda
  Paper 19.217 from CCP: 99, ISBN 978-1-905088-54-6 (2012)
  
• Building Spectral Elements from Finite Element Models of Waveguide Slices,
  J.R.F. Arruda and R.F. Nascimento
  Paper 41 from CCP: 88, ISBN 978-1-905088-23-2 (2008)