Petrova, Nadia https://orcid.org/0000-0002-2559-017X
Kostov-Kytin, Vladislav https://orcid.org/0000-0002-8616-6698
Kossev, Krasimir
Nikolova, Rosica https://orcid.org/0000-0003-4592-0911
Funding for this research was provided by:
Bulgarian National Science Fund (КП-06-Н64/4)
European Regional Development Fund (BG16RFPR002-1.014-0007)
Article History
Received: 1 July 2025
Accepted: 25 October 2025
First Online: 12 November 2025