@article{silveira_acerbi_mello_bueno_2017,  title={Object-based change detection using semivariogram indices derived from NDVI images: The environmental disaster in Mariana, Brazil},  volume={41},  ISSN={1413-7054},  url={https://doi.org/10.1590/1413-70542017415009817},  DOI={10.1590/1413-70542017415009817},  number={5},  journal={Ciência e Agrotecnologia},  publisher={Editora da Universidade Federal de Lavras},  author={Silveira, Eduarda Martiniano de Oliveira and Acerbi, Fausto Weimar and Mello, José Márcio de and Bueno, Inácio Thomaz},  year={2017},  month={Sep},  pages={554–564} }