1. Michael CJ. Energy efficient engine shroudless, hollow fan blade technology report. Washington, D.C.: NASA; 1982. Report No.: NASA-CR-165586.
2. Halle JE, Michael CJ. Energy efficient engine fan component detailed design report. Washington, D.C.: NASA; 1981. Report No.: NASA-CR-165466.
3. Fitzgerald GA, Broughton T. The Rolls-Royce wide chord fan blade. The 1st International Conference of the Titanium Products and Applications; 1986 Oct 19-22; San Francisco, US. 1986. p. 1-19.
4. Applications of superplastic forming and diffusion bonding to hollow engine blades;Xun;J Mater Process Technol,2000
5. Three-dimensional modeling and simulation of superplastic forming;Li;J Mater Process Technol,2004