Oliveira, B. C. S. de, A. C. de Araújo, C. A. D. Pinto, C. M. de A. Souza, A. V. Santiago, and I. A. Trindade. “Characterization of Seasonal Variation of Atmospheric CO2 in the ILPF System in Eastern Amazonia”. Ciência E Natura, vol. 40, Mar. 2018, pp. 181-6, doi:10.5902/2179460X30756.