Bixio, Roberto, Andrea De Pascale, Carla Galeazzi, and Mario Parise. “Rupestrian Works and Artificial Cavities: Categories of Construction Techniques”. Journal of Architectural and Engineering Research 4 (June 9, 2023): 59–68. Accessed September 11, 2024. https://jaer.nuaca.am/index.php/jaer/article/view/126.