K. Keller, T. Schlothauer, M. Schwarz, G. Heide and E. Kroke: "Process for the production of aluminium nitride with common salt structure by shock wave synthesis". Patent DE102011051647.6. 2011.
M. Schwarz, F. Mertens, U. Kirsten, S. Rötntzsch and M. Reich: "Chisel direct drive for tools based on a heat engine". DE102010050244B4. 2010.
M. Schwarz, E. Kroke, J. Kortus and C. Loose: "Hard and incompressible solid-state compounds based on the elements silicon, aluminium, oxygen and nitrogen, process for their production and use". DE102009007749A1. 2009.