Lucas, D. D. P.; Heldwein, A. B.; Maldaner, I. C.; Trentin, R.; Hinnah, F. D.; Silva, J. R. da. Water Excess in Different Soils and Sowing Times for Sunflower in the State of Rio Grande Do Sul, Brazil. PAB 2015, 50 (6), 431-440. https://doi.org/10.1590/S1678-3921.pab2015.v50.20360.