BIBID5919 Bernard, Robert B. "The Intellectual Circle of Isabel of Portugal, Duchess of Burgundy, and the Portuguese Translation of Le Livre des trois vertus (O Liuro das tres vertudes)". The Reception of Christine de Pizan from the Fifteenth Through the Nineteenth Centuries: Visitors to the City. Ed. Glenda K. McLeod. Lewiston, NY: Mellen, 1991. Pages 43-58.