doi> SCHAFFEL, S. ; HERRERA, S. ; OBERMAIER, M. ; Rovere, Emilio Lèbre La . Can family farmers benefit from biofuel sustainability standards? Evidence from the Brazilian Social Fuel Certificate. Biofuels, v. 3, p. 725-736, 2012.
doi> SCHAFFEL, S. ; HERRERA, S. ; OBERMAIER, M. ; Rovere, Emilio Lèbre La . Can family farmers benefit from biofuel sustainability standards? Evidence from the Brazilian Social Fuel Certificate. Biofuels, v. 3, p. 725-736, 2012.
