Vladev, Ivaylo, and Rositsa Vladeva. “ASSESSMENT AND ANALYSIS OF THE TOURISM POTENTIAL OF THE BULGARIAN DANUBE MUNICIPALITIES IN THE NORTH-WEST PLANNING REGION”. Challenges of Tourism and Business Logistics in the 21st Century, vol. 8, July 2025, pp. 207-20, https://doi.org/10.46763/YFNTS2581207v.