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2. Field Theory of Guided Waves;Collin,1960
3. Numerical Computing with MATLAB;Moler,2004
4. C.B. Moler, Finite difference methods for the eigenvalue of Laplace’s operator (Stanford Tech. Report CS 22, Stanford Univ., Stanford, CA, May 1965)
5. Use of trignometric terms in the finite element method with application to vibrating membranes;Milsted;J. Sound Vibration,1974