@article{rubio_koppe_costa_cherchenevski_2015,  title={How the use of stratigraphic coordinates improves grade estimation},  volume={68},  ISSN={0370-4467},  url={https://doi.org/10.1590/0370-44672015680057},  DOI={10.1590/0370-44672015680057},  number={4},  journal={Rem: Revista Escola de Minas},  publisher={Escola de Minas},  author={Rubio, Ricardo Hundelshaussen and Koppe, Vanessa Cerqueira and Costa, João Felipe Coimbra Leite and Cherchenevski, Pablo Koury},  year={2015},  month={Oct},  pages={471–477} }