NATO (11. mars 2022). «Relations with Ukraine». NATO (på engelsk). Besøkt 25. mars 2022. «In June 2017, the Ukrainian Parliament adopted legislation reinstating membership in NATO as a strategic foreign and security policy objective. In 2019, a corresponding amendment to Ukraine’s Constitution entered into force. | In September 2020, President Volodymyr Zelenskyy approved Ukraine’s new National Security Strategy, which provides for the development of the distinctive partnership with NATO with the aim of membership in NATO.»
Lange, Even (25. november 2015). «NATO-medlemskap og blokkpolitikk». www.norgeshistorie.no (på norsk). Institutt for arkeologi, konservering og historie (IAKH) ved UiO. Besøkt 25. mars 2022.