Oliński, Marian. “Approaches to Financing Public Benefit Organisations in the Area of National Security in the Digital Environment”. Scientific Journal of Bielsko-Biala School of Finance and Law 28, no. 2 (June 30, 2024): 34–42. Accessed September 14, 2024. https://asej.eu/index.php/asej/article/view/773.