Calderon, Gabriela, and Victor da Assunção Borsato. 2017. “The Phenomenon of La Niña and Its Influence on the Availability of Water for the Municipality of Campo Mourão-PR”. GEOUSP Espaço E Tempo (Online) 21 (1): 177-97. https://doi.org/10.11606/issn.2179-0892.geousp.2017.116476.