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- [6] VIBRATION OF RECTANGULAR PLATES BY THE RITZ METHOD JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1950, 17 (04): : 448 - 453
- [7] VIBRATION OF RECTANGULAR PLATES BY THE RITZ METHOD JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1951, 18 (02): : 229 - 229