@article{silva_molin_2018,  title={On-the-go tropical soil sensing for pH determination using ion-selective electrodes},  volume={53},  ISSN={0100-204X},  url={https://doi.org/10.1590/S0100-204X2018001100001},  DOI={10.1590/S0100-204X2018001100001},  number={11},  journal={Pesquisa Agropecuária Brasileira},  publisher={Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira},  author={Silva, Fernanda Cristina de Souza and Molin, José Paulo},  year={2018},  month={Nov},  pages={1189–1202} }