The salernitan coinage of Gisulf II (1052-77) and Robert Guiscard (1077-85). - Grierson, Philip, 1910-2006 (London : s.n., 1956)
In: Studies in Italian Médiéval History. Papers of the British School at Rome, 24. NS; 11(1956), pp. 37-59
Keywords: Gisulf II; Guiscard, Robert