DEVELOPMENT OF UKRAINE'S PAYMENT INFRASTRUCTURE IN THE CONTEXT OF DIGITALIZATION OF FINANCIAL SERVICES Authors N. Sirenko https://orcid.org/0000-0003-1660-1073 K. Mikuliak https://orcid.org/0000-0001-8317-0360 D. Tsapyk https://orcid.org/0009-0007-9601-7972 DOI: https://doi.org/10.32702/2307-2105.2026.4.57 Downloads pdf (Українська) Published 2026-04-23 Issue No. 4 (2026): Efektyvna ekonomika Section Статті