RYCZKOWSKI, Maciej. IS DEFLATION TRAP A SERIOUS THREAT? CASE STUDY OF FED, ECB AND NBP. Ekonomia i Prawo. Economics and Law. Online. 30 June 2015. Vol. 14, no. 2, pp. 243-259. [Accessed 17 July 2024]. DOI 10.12775/EiP.2015.015.