Stoykov, Stoyko, Valentin Vasilev, and Gentian Koci. “DIGITAL SUSTAINABILITY: THE ROLE OF SMART HR TOOLS IN ACHIEVING SUSTAINABLE DEVELOPMENT GOALS (SDGS)”. Proceedings of the International Conference on Secure Systems Design and Technology Development 1 (September 17, 2026): 493–498. Accessed September 29, 2026. https://journal.etrconf.eu/std/article/view/78.