00528naa#a2200169#i#450# EN\\bibl\98383 20250530072053.5 2782-4586 20250228b2025####ek#y0engy0150####ca RU RGBI as an indicator of liquidity of government bonds Journal article Moscow ITBO University 2025 6 с. Journal article local Долговые обязательства в целом. 336.763.31 Usvanov Vadim Sergeevich jomeam.ru