Scatolin MF, Pedrini H. STELLAR: A Structured, Trustworthy, and Explainable LLM-Led Architecture for Reliable Customer Support. JBCS [Internet]. 2026Feb.21 [cited 2026Mar.13];32(1):128-44. Available from: https://journals-sol.sbc.org.br/index.php/jbcs/article/view/6044