PETROV , Kamen; STOYANOVA, Milena. PROBLEMS OF REGIONAL DEVELOPMENT AND REGIONAL ECONOMY OF BULGARIA.FEATURES AND APPLIED ASPECTS. Revista Inclusiones, [S. l.], v. 8, n. Esp., p. 32–54, 2020. Disponível em: https://revistainclusiones.org/index.php/inclu/article/view/244. Acesso em: 4 feb. 2026.