@article{novotny_hayes_madari_bonagamba_azevedo_souza_song_nogueira_mangrich_2009,  title={Lessons from the Terra Preta de Índios of the Amazon region for the utilisation of charcoal for soil amendment},  volume={20},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532009000600002},  DOI={10.1590/S0103-50532009000600002},  number={6},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Novotny, Etelvino H. and Hayes, Michael H. B. and Madari, Beáta E. and Bonagamba, Tito J. and Azevedo, Eduardo R. de and Souza, André A. de and Song, Guixue and Nogueira, Christiane M. and Mangrich, Antonio S.},  year={2009},  pages={1003–1010} }