1. Anantharaman B, Hazarika S, Ahmad T, Nagvekar M, Ariyapadi S, Gualy R. Coal gasification technology for ammonia plants. In: Proc of the Asia nitrogen & syngas 2012 conference, Kuala Lumpur, Malaysia, 2012.
2. Gilbert P, Thornley P, Alexander S, Brammer J. Biomass gasification for ammonia production. In: Proc of the International conference on polygeneration strategies, Vienna, Austria, 2009.
3. Hofbauer H, Rauch R, Löffler G, Kaiser S, Fercher E, Tremmel H. Six years experience with the FICFB-gasification process. In: Proc of the 12th European conference and technology exhibition on biomass for energy, industry and climate protection, Amsterdam, The Nederlands, 2002.
4. Rauch R, Hofbauer H, Bosch K, Siefert I, Aichernig C, Tremmel H, et al. Steam gasification of biomass at CHP plant guessing – status of the demonstration plant. In: Proc of the second world biomass conference, Rome, Italy, 2004.
5. Fredriksson Möller B, Molin A, Ståhl K, Svensson J-A. E.ON – Bio2G Syntesrapport ver. 0 EGD-1301-01; 2013.