Bartha Antal: Barbarian and early feudal societies on the fringes of Europe - Studia historica Academiae Scientiarum Hungaricae 69. (Budapest, 1970)
A. BARTHA BARBARIAN AND EARLY FEUDAL SOCIETIES ON THE FRINGES OF EUROPE
A. BARTHA BARBARIAN AND EARLY FEUDAL SOCIETIES ON THE FRINGES OF EUROPE