Kovacheva, S. and Dimitrova, L. 2021. Presentation of UNESCO Bulgarian Cultural Heritage Sites - а Methodological Framework for Designing a Web based Application as a Didactic Resource in an Information Environment. Digital Presentation and Preservation of Cultural and Scientific Heritage. 11, (Sep. 2021), 273–278. DOI:https://doi.org/10.55630/dipp.2021.11.25.