Tetradrakhmite na purva makedonska oblast : klasifikator na moneti ot tipa glava na artemida v tsent'ra na makedonski štit/toiaga ot sukrovištata otkriti v Bulgariia = The tetradrachms of first Macedonian region : clasification of coins from type head of Arthemis/club from coin hoards of Bulgaria - Prokopov, Ilja Simeonov (Dios, 1994)