Araújo, E. da S.; Marsola, T.; Miyazawa, M.; Soares, L. H. de B.; Urquiaga, S.; Boddey, R. M.; Alves, B. J. R. Calibration of a Semi-Opened Static Chamber for the Quantification of Volatilized Ammonia from Soil. PAB 2010, 44 (7), 769-776. https://doi.org/10.1590/S1678-3921.pab2009.v44.1961.