Stoyanov, Lyubomir I.
Mincheva, Maria
Stefanov, Aleksander
Stefanov, Ivan
Dreischuh, Alexander
Funding for this research was provided by:
Bulgarian National Science Fund, Bulgaria (KΠ-06-H78/6)
Ministry of Education and Science (National Roadmap for Research Infrastructures (Bulgaria) - Project ELI ERIC BG DO1-102/26.06.2025)
Ministry of Education and Science, Bulgaria (European Union-NextGenerationEU, through the “National Recovery and Resilience Plan of the Republic of Bulgaria, project BG-RRP-2.004-0008-C01)
Bulgarian National Science Fund (KΠ-06-H78/6)
Article History
Received: 12 November 2025
Accepted: 24 March 2026
First Online: 9 April 2026
Declarations
:
: The authors declare no conflict of interest.
: The authors declare no conflict of interest.