@misc{hutt_radial_friction_1999, 
author={Hutt, G.A.,dos Santos, J.F.,Torster, F.},
title={Radial friction welding of titanium risers - Process and properties},
year={1999},
howpublished = {conference lecture (invited): Trondheim (N); 17.02.1999},
note = {Online available at: \url{} (DOI). Hutt, G.; dos Santos, J.; Torster, F.: Radial friction welding of titanium risers - Process and properties. Titanium risers and flowlines seminar. Trondheim (N), 1999.}}