Gonçalves, L. M., B. D. S. Barbosa, G. A. e S. Ferraz, D. T. Maciel, and H. F. D. Santos. “SPACE AND TEMPORARY VARIABILITY OF THE INDEX VEGETATION APPLIED TO IMAGES OBTAINED BY A REMOTELY PILOTED AIRCRAF”. Revista Brasileira De Engenharia De Biossistemas, vol. 11, no. 4, Dec. 2017, pp. 340-9, doi:10.18011/bioeng2017v11n4p340-349.