Мegalithic culture in Strandzha and Sakar
The Odrysian kingdom
The Astess kingdom
Strandzha during the Roman age
Strandzha and Sakar through the Late Antiquity and the Middle Ages

Доклад 1 (на български)
Доклад 2 (на български)
Report 1 (in English)
Report 2 (in English)