Lis, Andrzej. “The Manifestations of Positive Leadership Strategies in the Doctrinal Assumptions of the U.S. Army Leadership Concept”. Journal of Corporate Responsibility and Leadership 2, no. 1 (March 9, 2016): 51–76. Accessed April 26, 2024. https://apcz.umk.pl/JCRL/article/view/JCRL.2015.004.