[1] Paskaleva, M. (2017). Crisis risk measurements – trade with credit default swaps against measurements of the capital trade dynamics. International Journal of Contemporary Economics and Administrative Sciences, 7(1-2), pp. 81-113. Retrieved from http://www.ijceas.com/index.php/ijceas/article/view/154
[5] Belova G., S. Pavlov E-Health: Legal and Security Challenges, Proceedings2 of the XXV International Scientific Conference KBO, pp. 109-113, Sibiu, Romania, DOI: 10.2478/kbo-2019-0065,2019.10.2478/kbo-2019-0065
[8] Slater, D., Even-Shoshan, G., Waelbroeck, D. and Parr, N. The impact of Covid-19. Free Movement of Persons and Goods Within the Eu Single Market. Available at https://www.ashurst.com/en/news-and-insights/legal-updates/the-impact-of-covid-19---free-movement-of-persons-and-goods-within-the-eu-single-market/
[10] Marinov M., Zakonodatelnata uredba na studentskoto kreditirane v Republika Bulgaria, prez prizmata na pravoto na obrazovanie, proglaseno ot Hartata na osnovnite prava na ES. Journal “Mezhdunarodna politika”, vol. 2, 2019.
[13] Consolidated version of the Treaty on the Functioning of the European Union - PART SEVEN: GENERAL AND FINAL PROVISIONS - Article 352 (ex Article 308 TEC)