00487naa#a2200169#i#450# EN\RIOR\bibl\122117 20260524021521.7 2409-6024 20260523b2026####ek#y0engy0150####ca RUS RU BUSINESS MODEL OF STABLECOIN ISSUERS: THE CASE OF CIRCLE (USDC) Journal article Moscow Publishing Center RIOR 2026 12 с. Journal article local Skultety Yaroslav Filip riorpub.com