@misc{zerbst_damage_tolerance_2007, 
author={Zerbst, U., Schoedel, M., Heyder, R.},
title={Damage Tolerance Investigations on Rails},
year={2007},
howpublished = {conference lecture: Paris (F);},
note = {Zerbst, U.; Schoedel, M.; Heyder, R.: Damage Tolerance Investigations on Rails. Fatigue and Damage Tolerance of Railway Rails, ESIS TC 24 Workshop. Paris (F), 2007.}}