1. J. Gieshoff, J. Lang, Method for removing nitrogen oxides from an oxygen-containing flue gas stream, Degussa AG, US-Patent US6517794 (February 11, 2003).
2. J. Gieshoff, J. Lang, Process for the plasma-catalytic production of ammonia, Degussa AG, US-Patent US6471932 (October 29, 2002).
3. J. Lang, et al., Reaktor, Anlage und großtechnisches Verfahren zur kontinuierlichen Herstellung von hochreinem Siliciumtetrachlorid oder hochreinem Germaniumtetrachlorid, Evonik-Degussa AG, OS DE102005041137A1 (April 14, 2005) (in German).
4. Novel process windows – Concept, proposition and evaluation methodology, and intensified superheated processing