ENVIRONMENT. TECHNOLOGY. RESOURCES
15th International Scientific and Practical Conference. June 27-28, 2024, ''Vasil Levski'' National Military University, Veliko Tarnovo, Bulgaria
Byanov, Ivan, department of Economic theory and international economic relations, Faculty of economics, University of Veliko Tarnovo "St. Cyril and St. Methodius" <br /><em> <br /> </em>, Bulgaria