Ustica. the results of the excavations of the Regione Siciliana, Soprintendenza ai beni culturali ed ambientali provincia di Palermo in collaboration with Brown University in 1990 and 1991 - Holloway, R. Ross, 1934- (Center for Old World Archaeology and Art, Brown University ; Département d'archéologie et d'histoire de l'art, Collège Erasme, 1995)