Cecco d’Ascoli (Francesco Stabili) - Medieval Studies - Oxford Bibliographies
https://www.oxfordbibliographies.com/display/document/obo-9780195396584/obo-9780195396584-0262.xmlWho are the martyrs of science? | History of science | The Guardian
https://www.theguardian.com/science/the-h-word/2014/sep/24/martyrs-science-history-galileo-nazi