Liebenehm, S. and H. Waibel, 2011. Attitudes towards risk and time among small-scale farmers in West Africa. Paper presented at the PEGNet Conference 2011, September 07-09, Hamburg, Germany.

Liebenehm, S., Affognon, H. and H. Waibel, 2009. Impact assessment of agricultural research in West Africa: an application of the propensity score matching methodology. Paper presented at the 29th IAAE Conference 2009, August 16-22, Beijing, China.

Liebenehm, S., Affognon, H. and H. Waibel, 2009. Assessing the impact of agricultural research on cattle farmers' knowledge about African Animal Trypanosomosis: an application of the propensity score matching approach. Paper presented at the 49th GeWiSoLa Conference 2009 , 30.09. - 02.10.2009, Kiel, Germany.

Liebenehm, S., Affognon, H. and H. Waibel, 2009. Economic impact of livestock research on farmers' knowledge and productivity - the case of Trypanosomosis in West Africa. Paper presented at Tropentag 2009 , October, 6-8, 2009, Hamburg, Germany.