@article{garcia_gomide_2013,  title={Use of linear programming models in experimentation with plant nutrients},  volume={19},  ISSN={0104-7760},  url={https://doi.org/10.1590/S0104-77602013000200009},  DOI={10.1590/S0104-77602013000200009},  number={2},  journal={CERNE},  publisher={UFLA - Universidade Federal de Lavras},  author={Garcia, Mauro Brino and Gomide, Lucas Rezende},  year={2013},  month={Apr},  pages={255–261} }