TY - JOUR T1 - Regional envelope curves for the state of Ceará: a tool for verification of hydrological dam safety JO - RBRH A1 - Chaves, Lárdner Gadelha A1 - Studart, Ticiana Marinho de Carvalho A1 - Campos, José Nilson Bezerra A1 - Souza, Francisco Assis de SN - 2318-0331 UL - 10.1590/2318-0331.021720160062 VL - 22 Y1 - 2017 PB - Brasil ER -