Ojha A. Version-Bounded Filing Question Answering: A Controlled Study of Source Labels, as-of Filtering, and Model Heterogeneity. Am. J. Financ. Inst. [Internet]. 2026 Oct. 24 [cited 2026 Oct. 25];4(1):232-40. Available from: https://journals.e-palli.com/home/index.php/ajfti/article/view/8764