Stanchev, Peter, Hristiyaniya Ancheva, Radoslav Pavlov, and George Simeonov. 2020. “The Eleventh National Information Day: Open Science, Open Data, Open Access, Bulgarian Open Science Cloud”. Digital Presentation and Preservation of Cultural and Scientific Heritage 10 (September):275-82. https://doi.org/10.55630/dipp.2020.10.24.