R. Spörl, R. Youssefi, J. Maier, and G. Scheffknecht. Coal - energy, environment and sustainable development : 33rd Annual International Pittsburgh Coal Conference (IPCC 2016), 1, page 444-458. Red Hook, NY, Curran, (2016)
U. Vogt, A. Mezger, K. Karacasulu, and U. Reuter. Neue Entwicklungen bei der Messung und Beurteilung der Luftqualität, 2250, page 19-32. Düsseldorf, VDI-Verl., (2015)
G. Waizmann, R. Spörl, and G. Scheffknecht. Setting the course for a biobased economy : papers of the 25th European Biomass Conference, page 467-472. Florence, Italy, ETA-Florence Renewable Energies, (2017)
G. Waizmann, R. Spörl, and G. Scheffknecht. Conference proceedings - 3rd International Conference on Renewable Energy Gas Technology, page 135-136. Lund, Renewable Energy Technology International AB, (2016)
S. Zimmermann, M. Schmid, B. Klein, and G. Scheffknecht. 13th International Conference on Greenhouse Gas Control Technologies, GHGT-13, 114, page 1325-1333. Amsterdam, Elsevier, (2017)