@article{couto_peternelli_barbosa_2013,  title={Classification of the coefficients of variation for sugarcane crops},  volume={43},  ISSN={0103-8478},  url={https://doi.org/10.1590/S0103-84782013000600003},  DOI={10.1590/S0103-84782013000600003},  number={6},  journal={Ciência Rural},  publisher={Universidade Federal de Santa Maria},  author={Couto, Mauricio Farias and Peternelli, Luiz Alexandre and Barbosa, Márcio Henrique Pereira},  year={2013},  month={Jun},  pages={957–961} }