S. Senn, und M. Liewald. New Developments in Sheet Metal Forming, Seite 151-161. Stuttgart, Germany, Institute for Metal Foming Technologies, University of Stuttgart, (2020)
R. Radonjic, M. Liewald, und F. Han. 12. International Conference on Accomplishments in Electrical and Mechanical Engineering and Information Technology, Banja Luka, Republic of Srpska, Bosnia and Herzegovina, (2015)
R. Meissner, und M. Liewald. Tribology in Manufacturing Processes and Joining by Plastic Deformation II, Volume 767 von Key Engineering Materials, Seite 456-464. Trans Tech Publications, (2018)