@misc{wittkowsky_damage_modeling_1997, 
author={Wittkowsky, B. U.,Pfuff, M. J.},
title={Damage Modeling of Random Materials},
year={1997},
howpublished = {conference lecture: East Hartford, CT (USA); 03.04.1997},
note = {Online available at: \url{} (DOI). Wittkowsky, B.; Pfuff, M.: Damage Modeling of Random Materials. United Technologies. East Hartford, CT (USA), 1997.}}