@article{silva_barbosa_nascimento_silva_silva_2018,  title={Geochemistry and Spatial Variability of Rare Earth Elements in Soils under Different Geological and Climate Patterns of the Brazilian Northeast},  volume={42},  ISSN={0100-0683},  url={https://doi.org/10.1590/18069657rbcs20170342},  DOI={10.1590/18069657rbcs20170342},  journal={Revista Brasileira de Ciência do Solo},  publisher={Sociedade Brasileira de Ciência do Solo},  author={Silva, Cinthia Maria Cordeiro Atanázio Cruz and Barbosa, Ronny Sobreira and Nascimento, Clístenes Williams Araújo do and Silva, Yuri Jacques Agra Bezerra da and Silva, Ygor Jacques Agra Bezerra da},  year={2018},  pages={e0170342} }