@article{vázquez_bertol_siqueira_paz-ferreiro_dafonte_2010,  title={Evolution of the soil surface roughness using geostatistical analysis},  volume={69},  ISSN={0006-8705},  url={https://doi.org/10.1590/S0006-87052010000500015},  DOI={10.1590/S0006-87052010000500015},  journal={Bragantia},  publisher={Instituto Agronômico de Campinas},  author={Vázquez, Eva Vidal and Bertol, Ildegardis and Siqueira, Glécio Machado and Paz-Ferreiro, Jorge and Dafonte, Jorge Dafonte},  year={2010},  pages={141–152} }