Centre Technique de Coopération Agricole et Rurale, 'Cartographie : Sur la bonne route', ICT Update, vol. 54, Technical Centre for Agricultural and Rural Cooperation, Wageningen, 2010
Heinz, Ignatz, 'Mobile services: Carrying data to the field', ICT Update, vol. 51, Technical Centre for Agricultural and Rural Cooperation, Wageningen, 2009
Stam, Gertjan van, 'Vulgarisation : Gardienne des talents', ICT Update, vol. 62, Technical Centre for Agricultural and Rural Cooperation, Wageningen, 2011
International Potato Center, 'International Potato Center (CIP): Audited Financial Statements and Complementary Information as of December 31, 2008 and 2007', International Potato Center, Lima, Peru, 2009
CTA. 1999. Biological Control of Weeds. A World Catalogue of Agents and their Target Weeds (fourth edition). Spore 80. CTA, Wageningen, The Netherlands.