Haines, Margaret Department Structural Changes in Systems of Knowledge, Max Planck Institute for the History of Science, Max Planck Society;
http://duomo.mpiwg-berlin.mpg.de/home.HTML (全文テキスト（全般）)
Haines, M. (Ed.). (2014). The years of the Cupola 1417-1436: digital archive of the sources of the Opera di Santa Maria del Fiore (Database). Florence [u.a.]: Opera di Santa Maria del Fiore. Retrieved from http://duomo.mpiwg-berlin.mpg.de/home.HTML.
