V. Calemma, M. Ferrari, S. Rabl, A. Haas, D. Santi, and J. Weitkamp. Preprints of the DGMK-Conference "New Technologies and Alternative Feedstocks in Petrochemistry and Refining", October 9 - 11, 2013, Dresden, Germany, 2013,2, page 39-50. DGMK, (2013)