@misc{ventzke_microstructural_characterization_2009, 
author={Ventzke, V., Brokmeier, H.-G., Merhof, P., Kocak, M.},
title={Microstructural characterization of friction welded TiAl-Ti6Al4V hybrid joints},
year={2009},
howpublished = {conference proceedings},
note = {Ventzke, V.; Brokmeier, H.; Merhof, P.; Kocak, M.: Microstructural characterization of friction welded TiAl-Ti6Al4V hybrid joints. 2009.}}