00550naa#a2200169#i#450# EN\\bibl\104400 20251205203702.5 2221-3260 20250717b2025####ek#y0engy0150####ca RU Short-term forecasting of the russian ruble exchange rate using a time series model Journal article Yaroslavl Yaroslavl State Technical University 2025 16 с. Journal article local Semyashkin Efim Grigorievich Voroncov Maksim Denisovich chemintech.ru