Caldana, Nathan Felipe da Silva, et al. «PLUVIOMETRIC VARIABILITY AND EXTREME PRECIPITATION AND DROUGHTS EVENTS IN THE CENTRAL NORTH MESOREGION OF PARANÁ». Revista Brasileña De Climatología, vol. 28, junio de 2021, pp. 788-07, https://ojs.ufgd.edu.br/rbclima/article/view/14912.