@article{soares_igue_1976,  title={Estudo comparativo entre fertilizantes fornecedores de enxofre},  volume={35},  ISSN={0006-8705},  url={https://doi.org/10.1590/S0006-87051976000100022},  DOI={10.1590/S0006-87051976000100022},  number={1},  journal={Bragantia},  publisher={Instituto Agronômico de Campinas},  author={Soares, Edmir and Igue, Toshio},  year={1976},  pages={5–10} }