1. Fibre laser cutting: Beam absorption characteristics and gas-free remote cutting
2. M. Lütke, T. Himmer, A. Wetzig, and E. Beyer, in Proceedings of the 28th ICALEO, Orlando, FL (LIA, Orlando, 2009), pp. 311–318.
3. Energetic efficiency of remote cutting in comparison to conventional fusion cutting
4. M. Lütke, A. Wagner, A. Wetzig, and E. Beyer, in Proceedings of the 31st ICALEO, Anaheim, CA (LIA, Orlando, 2012), pp. 292–301.