@article{acerbi júnior_silveira_mello_mello_scolforo_2015,  title={CHANGE DETECTION IN BRAZILIAN SAVANNAS USING SEMIVARIOGRAMS DERIVED FROM
               NDVI IMAGES},  volume={39},  ISSN={1413-7054},  url={https://doi.org/10.1590/S1413-70542015000200001},  DOI={10.1590/S1413-70542015000200001},  number={2},  journal={Ciência e Agrotecnologia},  publisher={Editora da Universidade Federal de Lavras},  author={Acerbi Júnior, Fausto Weimar and Silveira, Eduarda Martiniano de Oliveira and Mello, José Márcio de and Mello, Carlos Rogério de and Scolforo, José Roberto Soares},  year={2015},  month={Mar},  pages={103–109} }