R. Schleich, M. Sindel, and M. Liewald. Neuere Entwicklungen in der Blechumformung, page 157-176. Fellbach/Stuttgart, Germany, MAT INFO Werkstoff-Informationsgesellschaft mbH, (2008)
M. Liewald, R. Radonjic, and D. Briesenick. 39° SENAFOR - 9th International Sheet Metal Forming Conference, page 8. Porto Alegre, Brazil, (October 2019)
C. Held, R. Schleich, M. Liewald, and M. Sindel. Documentation of the 9th Stuttgart International Symposium. Automotive and Engine Technology (FKFS), page 463-476. Vieweg Verlag, (2009)