Абритус--римски кастел и ранновизантийски град в Долна Мизия

[This volume] is dedicated to the results of more than twenty years of archaeological excavations in the Hisarlik locality near the town of Razgrad and considers problems connected with the location of Abritus and its fortification system. A brief survey is made of the fortifications in the Roman Empire and the place of Abritus within the Roman fortification system ...