1. Bailey AC, Bartlett F, Boswinkel HH, Bruining J, Chandelle V, Del Amor G, Garstang JH, Hewel-Bundemann H, Hewing G, Krabiell K, Ledent P, Li TK, Mostade M, Pottier J, Witte P. The future development of underground coal gasification in Europe. A Comprehensive Report to CEC, Brussels, 1989.
2. Fiévez P, Gonzalez Lago JM, Goode A, Green M, Mostade M, Obis A. Drilling, well completion and engineering activities in preparation of the first underground coal gasification in the framework of a european community collaboration, Alcorisa, Spain. Proceedings of the 14th Annual International Pittsburg Coal Conference, Taijan, Shanxi: China. 23–27 September, 1997.
3. Chappell B, Mostade M. The El Tremedal underground coal gasification field test in Spain—first trial at great depth and high pressure, 15th Annual International Pittsburgh Coal Conference, Pittsburgh, PA, 14–18 September, 1998.
4. Disorder and mixing;Schweich,1988
5. Modelling of flow at Thulin underground coal gasification experiments