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Portugiesische Mathematikerin und Hochschullehrerin
Pilar Ribeiro (* 5. October 1911 in Lisbon; † 29. March 2011 in Cascais) was a portugiesische Mathematikerin und Hochschullehrerin. She was 99 years old. She was married to Hugo Ribeiro. Her education included University of Lisbon, ETH Zurich and Antigo Liceu Feminino de Maria Amália Vaz de Carvalho. She worked at Escola Secundária Pedro Nunes, Pennsylvania State University and University of Porto.