@article{verheijen_montanarella_bastos_2012, title={Sustainability, certification, and regulation of biochar}, volume={47}, ISSN={0100-204X}, url={https://doi.org/10.1590/S0100-204X2012000500003}, DOI={10.1590/S0100-204X2012000500003}, number={5}, journal={Pesquisa Agropecuária Brasileira}, publisher={Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira}, author={Verheijen, Frank G. A. and Montanarella, Luca and Bastos, Ana Catarina}, year={2012}, month={May}, pages={649–653} }