Geochemical response of a closed-lake basin to 20th century recurring droughts/wet intervals in the subtropical Pampean plains of South America - Piovano, E. L.; Larizzatti, Flávio Eduardo; Fávaro, Deborah Inês Teixeira; Oliveira, Sonia Maria Barros de; Damatto, S. R.; Mazzilli, Barbara Paci; Ariztegui, Daniel (Journal of Limnology, 2004)