Acs, Z., L. Szerb, (2010), The Global Entrepreneurship and Development Index (GEDI), SummerConference 2010 on “Opening Up Innovation: Strategy, Organization and Technology”, Imperial College London, re-cited in Al. S.
Biolcheva, P., S. Ivanov. (2024), AI effectiveness and risk assessment of investments in high-risk start-ups. Strategies for Policy in Science and Education, Volume 32, Number 3s., 18-28. https://doi.org/10.53656/str2024-3s-2-eff
Diandra, D., A. Azmy. (2020). Understanding Definition of Entrepreneurship. InternationalJournal of Management, Accounting and Economics, Vol. 7, No. 5, 235-241
Hristova, V. (2020). The new face of senior entrepreneurship. Strategiczne perspektywy rozwoju współczesnego biznesu, Ministerstwo Szkolnictwa i Nauki Ukrainy, ISBN 978-83-61467-92-2
Kirova, M., D., Yordanova. (2024). Training of personnel for Industry 5.0 through university clubs following the example of The University of Ruse. Strategies for Policy in Science and Education, Volume 32, Number 3s., 61-71. https://doi.org/10.53656/str2024-3s-6-tra
Petrova, P. (2024). Аccounting for Impacts: Exploring Sustainability Reporting in Bulgarian Companies under the CSRD. Proceedings of the International Conference on Business Excellence, Volume 18, Issue 1, (June 2024), 2172 – 2182. https://doi.org/10.2478/picbe-2024-0182
Pirrone, G., & Milotta, M. (2024). Entrepreneurial Culture and Continuous Improvement to Handle Environmental Turbulence. Proceedings of the International Conference on Business Excellence, Volume 18, Issue 1, (June 2024), 1465-1476. https://doi.org/10.2478/picbe-2024-0120
Yordanov, D. (2023). Toolkit for assessing entrepreneurial competencies among learners. Strategies for Policy in Science and Education, Volume 31, Number 3s, 25-44, https://doi.org/10.53656/str2023-3s-2-too