Bruno Callegher, Nulla dies sine linea: among the dinars of 65-334H / 684-946CE, in Giulio Bernardi: “Arabic Gold Coins: the first essay of a Corpus, vol. 1: From the first issue to the beginning of the Buwayhid domination”, Trieste, EUT Edizioni Università di Trieste, 2010, pp. 409-418
