evidence: - ↑ RUSSIA RUSSIA ––UKRAINE BOUNDARY IN THE UKRAINE BOUNDARY IN THE SEA OF AZOV AND KERCH STRAIT SEA OF AZOV AND KERCH STRAIT Arxivat 14 May 2014[Date mismatch] a Wayback Machine. - ↑ Woronowycz, R. Ukraine and Russia move on border delimitation. Kyiv Press Bureau. The Ukrainian Weekly. 25 November 2001 - ↑ «Layer Nordsee - Ems-Dollart-Vertrag» (en alemany). State of Lower Saxony. Arxivat de l'original el 4 de gener 2018. [Consulta: 3 gener 2018]. [...] - ↑ «Russia e Abkhazia litigano per i confini». AgoraVox Italia, 23-05-2011 [Consulta: 20 d’abril 2018].