1. A. J. Barnes: Industrial Applications of Superplastic Forming, 23rd Annual Aluminum Design and Fabrication Seminar, October 23, 2002, Livonia, Michigan.
2. J. G. Schroth in: Advances in Superplasticity and Superplastic Forming, edited by E. M. Taleff, P. A. Friedman, P. E. Krajewski, R. S. Mishra, and J. G. Schroth, TMS, Warrendale, PA, (2004) p.9.
3. J.E. Carsley and R.H. Hammar In: Advances in Superplasticity and Superplastic Forming, edited by E. M. Taleff, P.A. Friedman, P. E. Krajewski, R. S. Mishra, and J. G. Schroth, TMS, Warrendale, PA, (2004) p.21.
4. J. Carsley, R. Hammar, and J. Bradley: U.S. Patent 6890394 (2005).
5. P. Gregg and M. Matsen: U.S. Patent 5, 410, 132 (1995).