(1) Thomas L. Friedman, “Foreign affairs, now a word from X”, The New York Times, 2 de mayo de 1998.
(2) William J. Burns, The Back Channel. A Memoir of American Diplomacy and the case for its Renewal, Random House, Nueva York, 2019.
(3) Jack F. Matlock Jr., “I was there: NATO and the origins of the Ukraine crisis”, Responsible Statecraft, 15 de febrero de 2022, https://responsiblestatecraft.org
(4) Patrick Buchanan, A Republic, Not an Empire. Reclaiming America’s Destiny, Regnery Publishing, Washington D. C., 1999.
(5) “Chomsky: any Russian leader would have to react to Ukraine joining NATO”, entrevista de 2015, disponible en Youtube.
(6) Entrevista con Nikita Gryazin, University Consortium, 17 de diciembre de 2020.