Dowgier, R. 2019. Some reflections on In Dubio Pro Tributario principle. Acta Iuridica Resoviensia (formelry: The Scientific Journal of the University of Rzeszow, Law Series). 27, 108 (Dec. 2019), 39–49. DOI:https://doi.org/10.15584/znurprawo.2019.27.4.