L. Al-Makhadmeh, J. Maier, M. Al-Harahsheh, and G. Scheffknecht. Special issue of the Second International Symposium on Gasification and its Application, 103, special issue, page 421-429. Amsterdam, Elsevier, (2013)
N. Armbrust, N. Poboss, T. Eder, M. Zieba, and G. Scheffknecht. 19th European Biomass Conference and Exhibition : from research to industry and markets; proceedings, Florence, ETA-Florence Renewable Energies, (2011)
S. Babat, R. Spörl, J. Maier, and G. Scheffknecht. Fuel quality impacts on power production - the first 50 years, Snowbird, Utah, USA, Harding, Stan, (2015)
T. Baquet, D. Wu, D. Steiner, U. Schnell, and H. Jung. Effizient, umweltverträglich, dezentral : neue Konzepte für die Nutzung von biogenen Festbrennstoffen, volume 2 of Schriftenreihe des BMU-Förderprogramms "Energetische Biomassenutzung", DBFZ, Deutsches Biomasseforschungszentrum, Leipzig, (2014)
M. Bari, G. Baumbach, G. Scheffknecht, and B. Kuch. Proceedings of the 2nd International conference on Environmental management, engineering, planning and economics (CEMEPE 2009) and SECOTOX Conference, Thessaloniki, CEMEPE, (2009)
M. Bari, G. Baumbach, B. Kuch, and G. Scheffknecht. Urban air quality : selected papers from the 6th International Conference on Urban Air Quality, 43, 31, special issue, page 4722-4732. Amsterdam, Elsevier, (2009)
G. Baumbach, M. Struschka, G. Scheffknecht, and H. Hartmann. Stickstoffdioxid und Partikel (PM 2,5/PM 10) - 2011, 42, page 61-72. Düsseldorf, Kommission Reinhaltung der Luft im VDI und DIN, Normenausschuss KRdL, (2011)
G. Baumbach, B. Wejbera, and G. Fischer. Neue Entwicklungen bei der Messung und Beurteilung der Luftqualität, 2250, page 277-281. Düsseldorf, VDI-Verl., (2015)
M. Beirow, M. Schmid, R. Spörl, and G. Scheffknecht. Proceedings of the 12th International Conference of Fluidized Bed Technology, page 861-867. Kraków, Fundacja dla Akademii Górniczo-Hutniczej im. Stanisława Staszica, (2017)
A. Bidwe, A. Charitos, H. Dieter, A. Wei, M. Zieba, and G. Scheffknecht. Proceedings of the Tenth International Conference on Circulating Fluidized Beds and Fluidization Technology - CFB-10, page 641-648. New York, NY, Engineering Conferences International, (2011)
K. Brechtel, G. Scheffknecht, M. DiBlasi, and H. Thorwarth. Proceedings / Air Quality VII : an international conference on carbon management, mercury, trace substances, SOx, NOx, and particulate matter, Grand Forks, N.D., Energy & Environmental Research Center, (2009)
K. Brechtel, S. Unterberger, and G. Scheffknecht. Papers / Fourth International Conference on Clean Coal Technologies, CCT in conjunction with 3rd International Freiberg Conference on IGCC & XtL Technologies, London, IEA Clean Coal Centre, (2009)
H. Dieter, A. Bidwe, and G. Scheffknecht. Calcium and Chemical Looping Technology for Power Generation and Carbon Dioxide (CO2) Capture, 82, chapter 9, Woodhead Publishing, Sawston, 1 edition, (2015)