@article{sarto_steiner_lana_2011,  title={Assessment of micronutrient extractants from soils of Paraná, Brazil},  volume={35},  ISSN={0100-0683},  url={https://doi.org/10.1590/S0100-06832011000600024},  DOI={10.1590/S0100-06832011000600024},  number={6},  journal={Revista Brasileira de Ciência do Solo},  publisher={Sociedade Brasileira de Ciência do Solo},  author={Sarto, Marcos Vinicius Mansano and Steiner, Fábio and Lana, Maria do Carmo},  year={2011},  month={Nov},  pages={2093–2103} }