AMARO DIAS, Vanda. The battle of giants: the collision of EU and Russian foreign policies towards the contested neighbourhood and the Ukrainian crisis. Debater a Europa, [S.l.], n. 18, p. 63-83, jan. 2018. ISSN 1647-6336. Disponível em: <https://impactum-journals.uc.pt/debatereuropa/article/view/5164>. Acesso em: 22 abr. 2019.