1. Yoshida K et al. Analysis and control of buckling behaviour due to elastic recovery in press forming. Proceedings of the 13th Biennial Congress of the International Deep Drawing Research Group, IDDRG, Melbourne, Australia, February 20–24, 1984. p. 73–84.
2. Asnafi N. Mechanics of sheet metal forming, Ph.D. Thesis, LTU-DT-1997/6, Luleå University of Technology, Sweden, 1997. p. BI1–3.
3. Nagpal V et al. ICAM mathematical modelling of sheet metal formability indices and sheet metal forming processes. Technical Report AFML-TR-79-4168, AFML/LTC, WPAFB, OH 45433, USA, 1979.
4. Mielnik EM. Metalworking science and engineering. New York, U.S.A.: McGraw-Hill, 1991. p. 34, 743–51.
5. Duncan JL et al. Die forming approximations for aluminium sheet. Sheet Metal Industries 1978. p. 1015–25.