The newest information about the ancient city and a comprehensive list of titles can be found in the following volume:
Vagalinski, L. / Nankov, E. (eds.) 2015. Heraclea Sintica: from Hellenistic polis to Roman civitas (4th c. BC-6th c. AD). International conference, Petrich, 19-21.09.2013 (= Papers of the American Research Center in Sofia 2). Sofia.