1. Guided waves in a circular duct containing an assembly of circular cylinders;Lin;Journal of Sound and Vibration,1981
2. Approximate method of determining the cutoff frequencies of waveguides of arbitrary cross section;Chi;Institute of Electrical and Electronic Engineers Transactions,1964
3. Conformal mapping and the determination of cutoff frequencies of waveguides with arbitrary cross section;Laura,1966
4. Calculations of eigenvalues for uniform fluid waveguides with complicated cross sections;Laura;Journal of the Acoustical Society of America,1967
5. TE and TM waves in waveguides of very general cross section;Meinke,1963