POLASIK, Michał and PIOTROWSKI, Dariusz. PAYMENT INNOVATIONS IN POLAND: THE ROLE OF PAYMENT SERVICES IN THE STRATEGIES OF COMMERCIAL BANKS. Ekonomia i Prawo. Economics and Law. Online. 31 March 2016. Vol. 15, no. 1, pp. 73-101. [Accessed 27 April 2024]. DOI 10.12775/EiP.2016.006.