Silva, F.F.S., Oliveira, G.M., Araújo, M.N., Angelotti, F., Moura, M.S.B. e Dantas, B.F. 2017. Rainfall events, high CO2 concentration and germination seeds of Caatinga. Journal of Environmental Analysis and Progress. 2, 3 (jul. 2017), 258–265. DOI:https://doi.org/10.24221/jeap.2.3.2017.1453.258-265.