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Pedro Nunes - Wikipedia
Nonius (device) - Wikipedia
Pedro Nunes | Mathematician, Cartographer, Astronomer
Pedro Nunes Salaciense - MacTutor History of Mathematics Archive
Nunes, Pedro | SpringerLink
Pedro Nunes – Timeline of Mathematics – Mathigon
Pedro Nunes - Wikipedia, la enciclopedia libre
Pedro Nunes Portuguese Mathematician - Portugal Visitor
Nunes, Pedro | SpringerLink
Pedro Nunes Biography - Portuguese mathematician (1502–1578) …