Couto, C. A., Peixoto, C. P., Vieira, E. L., Carvalho, E. V. and 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), pp. 206–209. doi: 10.14295/cs.v3i3.108.