Climatology of extratropical cyclones over the South American–southern oceans sector
David Mendes1, 3 
, Enio P. Souza2, José A. Marengo1 and Monica C. D. Mendes3
https://www.springerlink.com/content/x142t5120646060n/?p=3e17a1fd8ce94046875d886e585b36a5&pi=0