Hasenack, H., Weber, E.J., Boldrini, I.I., Trevisan, R., Flores, C.A. e Dewes, H. 2023. Biophysical delineation of grassland ecological systems in the State of Rio Grande do Sul, Southern Brazil. Iheringia, Série Botânica. 78, (fev. 2023). DOI:https://doi.org/10.21826/2446-82312023v78e2023001.