R. Yoshinov, Radoslav, Borislav R. Yoshinov, and Ivet B. Koleva. “Digital Health: A Web-Based Repository With Back School Recommendations and Exercises Against Paravertebral Pain (with a Comparative Study of the Opinions of Responders of Different Generations)”. Digital Presentation and Preservation of Cultural and Scientific Heritage 13 (September 1, 2023): 251–260. Accessed May 26, 2024. https://dipp.math.bas.bg/dipp/article/view/dipp.2023.13.24.