Sheil, Douglas; Casson, Anne; Meijaard, Erik; van Noordwijk, Meine; Gaskell, Joanne; Sunderland-Groves, Jacqui; Wertz, Karah; Kanninen, Markku(Center for International Forestry Research (CIFOR), Bogor, Indonesia, 2009)
Padmanabhan, Martina Aruna(CGIAR System-wide Program on Property Rights and Collective Action, International Food Policy Research Institute, Washington, DC, 2005)
Ratinger, Tomás; Krumalova, Veronika; Prazan, Jaroslav(Sustainable Agriculture in Central and Eastern European Countries (CEESA), Berlin, Germany, 2004)