^ 1.01.1Turnbull, Harvey (1974). The Guitar from the Renaissance to the Present (New York: Charles Scribner's Sons), p. 31. Reprinted in Guitar Study Series GSS 1 (Westport, CT: Bold Strummer, 1991) ISBN0-933224-57-5. See: Archived copy(PDF). [December 15, 2011]. (原始内容(PDF)存档于June 12, 2007)..
^Apel, Willi (1997). The History of Keyboard Music to 1700, p.263. Trans. Tischler, Hans. ISBN0-253-21141-7.