Fronius, T.; Petrosino, A.; Morgan, C. Protocol - What is the evidence of the impact of vouchers (or other similar subsidies for private education) on access to education for poor people? EPPI-Centre, Social Science Research Unit, Institute of Education, University of London, London, UK (2012) 36 pp
Centre Technique de Coopération Agricole et Rurale, 'Numéro spécial de Spore : Changements climatiques', Spore, Technical Centre for Agricultural and Rural Cooperation, Wageningen, 2008
Technical Centre for Agricultural and Rural Cooperation, 'Número especial da Esporo: Aquecimento global: Negócios em tempo de alterações climáticas', Esporo, Technical Centre for Agricultural and Rural Cooperation, Wageningen, 2015
Mitchell, C.J..; Evans, E.J..; Styles, M.T., 'The design, construction and testing of a simple shaking table for gold recovery: laboratory testing and field trials. (WC/97/061)', 1997