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2. Structure-Borne Sound;Cremer,1973
3. Natural flexural normal modes of periodically-supported finite beams;Sen Gupta;Journal of Applied Mechanics,1950
4. L. Cremer, Leilich, Zur Theorie der Biegekettenleiter, Archiv der elektrischen Übertragung 7 (1953) 261–270.
5. Free vibration of grillages;Ellington;Journal of Applied Mechanics,1959