Chartae Latinae Antiquiores. Facsimile-edition of the Latin Charters, 2nd Series, Ninth Century, edited by G. Cavallo, G. Nicolaj, Part LXXXVI, Italy LVIII, Lucca XV, published by C. Gattagrisi, C. Drago Tedeschini [docc. nn. 6, 31-50 alle pp. 29-31, 106-155]