@misc{zettler_high_speed_2007, 
author={Zettler, R., Picard, J.F., da Silva, A., dos Santos, J.},
title={High Speed Friction Stir Welding of a Wrought Magnesium AZ31 Alloy},
year={2007},
howpublished = {conference lecture: St. Petersburg (RUS);},
note = {Zettler, R.; Picard, J.; da Silva, A.; dos Santos, J.: High Speed Friction Stir Welding of a Wrought Magnesium AZ31 Alloy. Magnesium Broad Horizons, The Second International Conference and Exhibition. St. Petersburg (RUS), 2007.}}