@misc{schwalbe_effect_of_1991, 
author={Schwalbe, K.-H.},
title={Effect of weld metal mis-match on toughness requirements: some simple analytical considerations using the engineering treatment model (ETM)},
year={1991},
howpublished = {conference lecture: The Hague (NL); July 1-5, 1991},
note = {Online available at: \url{} (DOI). Schwalbe, K.: Effect of weld metal mis-match on toughness requirements: some simple analytical considerations using the engineering treatment model (ETM). 1991 Annual Assembly; International Conference Joining/Welding 2000. The Hague (NL), 1991.}}