1. J. W. Gillespie, Jr., “Evaluation of the Embedded Spar Composite Design Concept,” Master’s Thesis, Department of Mechanical and Aerospace Engineering, University of Delaware, Newark, Delaware, (1978).
2. Bathe, K. and Wilson, E., SAP V: A Structural Analysis Program for Static and Dynamic Response of Linear Systems.
3. Advanced Composite Design Guide. Advanced Division (Dayton, Ohio: AFML, 1973), Vol. 1 and 2.