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2. Eigenfrequencies of thin plates and layer potentials;Vivoli;J. Acoust. Soc. Am.,1974
3. Determination of eigenvalues by boundary element methods;Niwa,1982
4. An improved boundary element method for plate vibrations;Wong,1981
5. A mixed boundary integral-finite element approach to plate vibration problems;Bezine;Mechanics Research Communications,1980