ΗΡΑΚΛΕΟΥΣ ΣΩΤΗΡΟΣ ΘΑΣΙΩΝ - Paunov, Evgeni I; Philipova, Svetoslava; Prokopov, Ilja Simeonov (Faber, 2012)
At head of title: Academician Yordan Ivanov, Regional Historical Museum - Kyustendil, Neophit Rilsky Southwest University of Blagoevgrad, Faculty of Law and history, Bulgarian Museum Chamber Association (BMC)