GAVEIKA, Artūrs. SCHENGEN BORDERS CODE IN THE ASPECT OF BORDER SECURITY. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, Rezekne, Latvia, v. 6, p. 56–64, 2021. DOI: 10.17770/sie2021vol6.6478. Disponível em: https://archive-journals.rtu.lv/sie/article/view/2998.. Acesso em: 11 mar. 2026.