@misc{heerens_analysis_of_2001, 
author={Heerens, J., Hellmann, D., Kocak, M.},
title={Analysis of Ductile to Brittle Fracture Toughness of Steel Laser Welds},
year={2001},
howpublished = {conference lecture: Geesthacht (D);},
note = {Heerens, J.; Hellmann, D.; Kocak, M.: Analysis of Ductile to Brittle Fracture Toughness of Steel Laser Welds. Meeting IIW Commission X. Geesthacht (D), 2001.}}