1. M. Merklein, J.M. Allwood, B. -A. Behrens, A. Brosius, H. Hagenah, K. Kuzman, K. Mori, A. E. Tekkaya, A. Weckenmann, , 2012, Bulk forming of sheet metal, CIRP Annals - Manufacturing Technology, 59/2, http: /dx. doi. org/10. 1016/j. bbr. 2011. 03. 031.
2. M. Werbs, A. Bawohl, L. Gerlach: Kostengünstige Herstellung verzahnter Bauteile durch Blechmassivumformung, Tagungsband zum 1. Erlanger Workshop Blechmassivumformung, Bamberg: Meisenbach, 2011, pp.2-14.
3. A. Weckenmann, B. -A. Behrens, E. Reithmeier, G. Akkasoglu, M. Vucetic, T. Cahyono, C. Ohrt, S. Hübner, M. Kästner, Appliance of the matury method in the development of endoscopic geometry inspection for sheet bulk metal forming tools, in: Total Quality Management & Excellence 39 (2011).
4. M. Merklein, Manufacturing of complex functional components with variants by using a new sheet-metal forming process, Proceedings of the 42th International Cold Forging Group ICFG, Shnaghai, 2009, pp.143-155.
5. B. -A. Behrens, S. Hübner, M. Vucetic, Shortening the process chain by sheet-bulk metal forming processes, Proceedings of the 10th Global Conference on Sustainable Manufacturing, Istanbul 2012, pp.64-68.