A. Szpaderski, M. J. Urick, Introduction: The Importance of Leadership Theory, [w:] A. Szpaderski, M. J. Urick (eds.), Essential Principles for Managers: Innovative Approaches to Examining Foundational Theories of Management and Leadership, HPL Publications, Inc., Douglassville 2018. P. Cywiński, A. Szpaderski, Analytical Framework for Identifying Key External Factors Determining the Achievement of Strategic Goals of Museums and Memorial Sites of the Former Nazi German Concentration and Extermination Camps, [w:] A. Szpaderski, M. J. Urick (eds.), Essential Principles for Managers: Innovative Approaches to Examining Foundational Theories of Management and Leadership, HPL Publications, Inc., Douglassville 2018. P. Cywiński, A. Szpaderski, Ekonomika miejsc pamięci. Idea i program, „Stutthof. Zeszyty Muzeum” 2019, nr 7 (17). P. Cywiński, W. Karczewski, Ch. P. Neck, A. Szpaderski, K. B. Wojtkiewicz, International Leadership and Management. Emerging, Contemporary, and Unorthodox Perspectives, SWPS University, Warszawa 2022, . Model zarządzania siecią miejsc pamięci,