@misc{appel_advanced_titanium_1999, 
author={Appel, F.},
title={Advanced Titanium Aluminides for Structural Applications},
year={1999},
howpublished = {conference lecture (invited): Beijing (VRC); 13.-18.06.1999},
note = {Online available at: \url{} (DOI). Appel, F.: Advanced Titanium Aluminides for Structural Applications. International Conference on Advanced Materials, IUMRS-ICAM 1999. Beijing (VRC), 1999.}}