@article{calviño_eyherabide_2006,  title={Use of solaria to predict weed density and floristic composition in no-till cropping systems},  volume={41},  ISSN={0100-204X},  url={https://doi.org/10.1590/S0100-204X2006000300006},  DOI={10.1590/S0100-204X2006000300006},  number={3},  journal={Pesquisa Agropecuária Brasileira},  publisher={Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira},  author={Calviño, Pablo Antonio and Eyherabide, Juan José},  year={2006},  month={Mar},  pages={409–413} }