Chenyu Li, Wenhao Su, and Eric Zhang, “Lightweight Hallucination Firewall for Enterprise LLM Applications: Evidence Consistency, Self-Checking, and Small-Model Detection on TruthfulQA”, JACS, vol. 3, no. 1, pp. 49–65, Jan. 2023, doi: 10.69987/JACS.2023.30104.