Home News Press Releases Dr. Yan Ma receives Walter Benjamin Grant of the German Research Foundation Publications of Stephan Heppner All genres Journal Article (1) Journal Article (1) 1. Journal Article Bambach, M.; Heppner, S.; Steinmetz, D.; Roters, F.: Assessing and ensuring parameter identifiability for a physically-based strain hardening model for twinning-induced plasticity. Mechanics of Materials 84, pp. 127 - 139 (2015) MPG.PuRe DOI