1. Deklaratsiia Prezydenta Rosiiskoi Federatsii, Prezydenta Ukrainy, Prezydenta Frantsuzkoi Respubliky i Kantslera Federatyvnoi Respubliky Nimechchyna pro pidtrymku Kompleksu zakhodiv z implementatsii Minskykh domovlenostei, skhvalenoho u Minsku 12 lutoho 2015 roku [Declaration of the President of the Russian Federation, the President of Ukraine, the President of the French Republic and the Chancellor of the Federal Republic of Germany about the support of the Minsk agreements implementation measures complex approved in Minsk on 12 February 2015]. Available at: http://www.president.gov.ua/news/deklaraciyaprezidenta-rosijskoyi-federaciyi-prezidenta-ukra-34695
2. Dohovir mizh Ukrainoiu ta Federatyvnoiu Respublikoiu Nimechchyna pro rozvytok shyrokomasshtabnoho spivrobitnytstva u sferi ekonomiky, promyslovosti, nauky i tekhniky, 10.06. 1993 [Agreement between Ukraine and the Federal Republic of Germany on the development of large-scale cooperation in economy, industry, science and technology, 10 June 1993]. Available at: http://zakon3.rada.gov.ua/laws/show/276_010
3. Kompleks mer po vypolneniiu Minskikh sohlashenii [The Minsk agreements implementation measures complex]. Available at: http://www.osce.org/ru/cio/140221?download=true
4. Convention implementing the Schengen Agreement of 14 June 1985 between the Governments of the States of the Benelux Economic Union, the Federal Republic of Germany and the French Republic on the gradual abolition of checks at their common borders (Schengen, 19 June 1990). Available at: http://eur-lex.europa.eu/legal-content/EN/ALL/?uri=CELEX:42000A0922(02)
5. The North Atlantic Treaty (Washington D.C., 4 April 1949). Available at: http://www.nato.int/cps/en/SID-ECAE8DB0-F591EC88/natolive/official_texts_ 17120.htm