Marinov, V., M. Assenova, and E. Dogramadjieva. “Key Problems and Gaps in the EU Funds Absorption for Heritage Attractions Development: The Case of Bulgaria”. Almatourism - Journal of Tourism, Culture and Territorial Development, vol. 8, no. 7, Jan. 2017, pp. 178-97, doi:10.6092/issn.2036-5195/6768.