J. M. O. de Assis, H. F. M. Caldas, M. do C. M. Sobral, W. M. de Souza, e M. G. de S. Melo, “Analysis of climate indices and impacts on the rainfall regime in the Sub-medium stretch of the São Francisco River Basin, Brazil”, Rev. Principia, v. 59, n. 4, p. 1475–1486, dez. 2022, doi: 10.18265/1517-0306a2021id5570.