Couto, C. A., Peixoto, C. P., Vieira, E. L., Carvalho, E. V., & Peixoto, V. A. B. (2012). Action of cinetina, butyric acid and gibberellic acid on the emergency of sunflower under aluminum stress. Comunicata Scientiae, 3(3), 206–209. https://doi.org/10.14295/cs.v3i3.108