[PDF][PDF] Geotechnical assessment of the rock massif in the area of the medieval cultural monument Asen's Fortress, Bulgaria.
M Krastanov, R Nankin, A Aladzhov… - Geologica …, 2024 - geologica-balcanica.eu
The medieval fortress Asenova Krepost (Asen's Fortress) is built on a rocky massif of
metamorphic rocks in south-central Bulgaria. The rock hill, on which the fortress was built …
metamorphic rocks in south-central Bulgaria. The rock hill, on which the fortress was built …