S. Rüsenberg, L. Schmidt, and H.-J. Schmid, “Mechanical and Physical Properties - A Way to asses quality of Laser Sintered Parts,” in 22th Annual International Solid Freeform Fabrication Symposium, 2011, vol. 22, pp. 239–251.

S. Rüsenberg, L. Schmidt, H. Hosse, and H.-J. Schmid, Porosity as a key to increase material properties of laser sintered parts. 2011, pp. 531–538.

H.-J. Schmid, “Neuer Ansatz zur Modellierung der Abscheidung in einem modifizierten Rohrelektrofilter,” Gefahrstoffe, Reinhaltung der Luft. Air Quality Control, vol. 67, no. 4, 2007.

H.-J. Schmid and W. Peukert, “Novel Concepts for Teaching Particle Technology ,” chemical engineering education, vol. 36, no. 4, 2002.

H.-J. Schmid, “On the Modelling of the Electro-Hydrodynamic Flow Field in Electrostatic Precipitators,”10.1023/A:1015666116174__Flow, Turbulence and Combustion, vol. 68, pp. 63–89, 2002, doi:10.1023/A:1015666116174 .

H.-J. Schmid, Zum Partikeltransport in Elektrischen Abscheidern. Shaker Verlag, 1998.