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- [4] IMPROVED FINITE-ELEMENTS FOR VIBRATION ANALYSIS OF TAPERED BEAMS AERONAUTICAL QUARTERLY, 1973, 24 (FEB): : 39 - 46
- [10] VARIABLE ORDER FINITE-ELEMENTS FOR PLATE VIBRATION JOURNAL OF THE ENGINEERING MECHANICS DIVISION-ASCE, 1977, 103 (05): : 779 - 787