Van Stappen, F. , Crehay, R. , Schenkel, Y. , Ngnikam, E. , Tekapsso, P. , Tolalé, E. , Koudjou Talla, C. , Sarr, S. , Correa, J. , Dafrallah, T. , Saint-Sernin, E. , Thomas, J. , Douard, F. , Badji, L. , Riedacker, A. & Derlyn, C. (2007). Identification of non technological barriers to the implementation of bio-energy projects in SMEs in Senegal and Cameroon. Proceedings in: The 15th European Biomass Conference & Exhibition, Berlin - Germany, 7-11 May 2007, 2689-2694.
Marchal, D. , Van Stappen, F. & Schenkel, Y. (2007). Assessment of the Wood-energy Potential in the Brussels-Capital Region: Principles and methodology. Proceedings in: The 15th European Biomass Conference & Exhibition, Berlin - Germany, 07-11 May 2007, 308-309.