1. 1) M. Kawasaki and T.G. Langdon: Mater. Sci. 42 (2007) 1782–1796.
2. 2) T.G. Langdon: J. Mater. Sci. 44 (2009) 5998–6010.
3. 3) N. Ridley: Metals for superplastic forming, Superplastic Forming of Advanced Metallic Materials: Methods and Applications, ed. by G. Giuliano, (Woodhead Publishing Limited, Cambridge, 2011).
4. 4) T.G. Nieh, J. Wadsworth and O.D. Sherby: Superplasticity in Metals and Ceramics, first ed., (Cambridge University Press, Cambridge, 1997).
5. 5) K.A. Padmanabhan and G.J. Davies: Superplasticity, Mechanical and Structural Aspects, Environmental Effects, Fundamentals and Applications, (Springer-Verlag, Berlin; New York, 1980).