EUROPEAN UNION REGIONAL CHARACTERISTICS OF IMPROVING THE EFFICIENCY OF MARKET INFRASTRUCTURE FOR THE DEVELOPMENT OF SMALL BUSINESSES. Spectrum Journal of Innovation, Reforms and Development, [S. l.], v. 51, p. 49–53, 2026. Disponível em: https://sjird.journalspark.org/index.php/sjird/article/view/1345. Acesso em: 4 jun. 2026.