[1]
S. autor, «The political challenges facing the integration of Bulgaria into the European Union», Pap. este transic. poscomunistas, vol. 8, pp. 5–13, ene. 2004, Accedido: nov. 24, 2024. Disponible en: https://revistas.ucm.es/index.php/PAPE/article/view/PAPE0404120005A