Koziej, Stanisław, Strategic dilemmas of NATO and the EU : the main pillars of Euro-Atlantic security, w: A transatlantic or European perspective of world affairs : NATO and the EU towards problems of international security in the 21st century, ed. Andrzej Podraza, Madrid : Universidad de Alcalá, 2018, s. 37-64. ISBN 978-84-16978-58-8