Sobiecki, Grzegorz, and Marcelina Szwed-Ziemichód. “Using Blockchain Technology to Eliminate Selected Problems of the Tax System”. Analysis and Studies CASP 7, no. 1 (January 26, 2019): 3–33. Accessed December 17, 2025. https://econjournals.sgh.waw.pl/ASCASP/article/view/892.