(1) J. L. Hughes: Evalution of Nitinol for use as a Material in the Construction of Orthopaedic Implants, Final Report DAMP 17-74-C-4041, suported by the U. S. Army Medical Research and Development Command, Frederick, Maryland,(1977).
(2) M. A. Schmerling, M. A. Wilkov, A. E. Sanders and J. E. Wooseley: Shape Memory Effects in Alloys, Ed. by J. Perkins, Plenum Press, New York,(1975), 563.