@article{barros_fearnside_2015,  title={PEDO-TRANSFER FUNCTIONS FOR ESTIMATING SOIL BULK DENSITY IN CENTRAL
					AMAZONIA},  volume={39},  ISSN={0100-0683},  url={https://doi.org/10.1590/01000683rbcs20140358},  DOI={10.1590/01000683rbcs20140358},  number={2},  journal={Revista Brasileira de Ciência do Solo},  publisher={Sociedade Brasileira de Ciência do Solo},  author={Barros, Henrique Seixas and Fearnside, Philip Martin},  year={2015},  month={Mar},  pages={397–407} }