Magallanes-Quintanar R, Blanco-Macías F, Galván-Tejada EC, Galván-Tejada JI, Márquez-Madrid M, Valdez-Cepeda RD. Negative regional Standardized Precipitation Index trends prevail in the Mexico’s state of Zacatecas. terra [Internet]. 2019 Oct. 28 [cited 2024 Nov. 21];37(4):487-99. Available from: https://terralatinoamericana.org.mx/index.php/terra/article/view/563