A. A. de Farias, F. de A. Salviano de Sousa, T. L. Bezerra Alves, and J. T. Aires Souza, “Temporal analysis of events of drought in the municipalities of Caraúbas and Monteiro - PB”, Jour. Hyp. Rem. Sen., vol. 6, no. 2, pp. 82–90, May 2016.