Policies and regulations for Brazil’s artisanal gold mining sector: analysis and recommendations

Autor: Sousa, Rodolfo, Veiga, Marcello, Van Zyl, Dirk, Telmer, Kevin, Spiegel, Sam, Selder, Jeff
Zdroj: In Journal of Cleaner Production 2011 19(6):742-750
Databáze: ScienceDirect