Career
He was a specialist in and published many books related to the history of southern Brazil and southern South America and Antarctica, including História das Terras e Mares do Chuí (1978), a history of Chuí. He documented much about Gaucho history in Brazil and has also written books on Antarctica and the southern islands such as "Antártida: Derecho que Tiene Brasil, (1981), Antártida História e Geopolítica (1982) and Falkland ou Malvinas: o arquipélago contestado (1988). He is cited as amongst the most important geopolitical writers about Antarctica.
In 2001 he published Prefeitura de South. Vitória do Palmar, sua terra, Tahim, a última divisa, a study of the socioeconomic conditions of southern Brazil.