Vereškaitė D, Markevičiūtė J, Buteikis A. News-Augmented GARCH model: Theoretical properties and simulation-based hyperparameter analysis. NAMC [Internet]. 2026 May 26 [cited 2026 Sep. 24];31(4):831-54. Available from: https://www.journals.vu.lt/nonlinear-analysis/article/view/47080