@article{ducey_zarin_vasconcelos_araújo_2009,  title={Biomass equations for forest regrowth in the eastern Amazon using randomized branch sampling},  volume={39},  ISSN={0044-5967},  url={https://doi.org/10.1590/S0044-59672009000200013},  DOI={10.1590/S0044-59672009000200013},  number={2},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Ducey, Mark Jonathan and Zarin, Daniel Jacob and Vasconcelos, Steel Silva and Araújo, Maristela Machado},  year={2009},  pages={349–360} }