Coudel E., Piketty M.G., Gardner T., Viana C.F., Ferreira J.N., Morello T.F., Parry L., Barlow J., Antona M.. 2012. In : 12th Biennial Conference of the International Society for Ecological Economics (ISEE 2012 Conference) "Ecological Economics and Rio+20: Challenges and Contributions for a Green Economy", 16-19 June 2012, Rio de Janeiro, Brazil. s.l. : s.n., 34 p.. Biennial Conference of the International Society for Ecological Economics. 12, 2012-06-16/2012-06-19, Rio de Janeiro (Brésil).