Silva, Josiel, Sávio Salvarino Teles de Oliveira, Matheus Fares Costa Brakes, and João Paulo Cavalcante Presa. " A Hybrid RAG–Text2SQL Architecture for Auditable Question Answering in Brazilian Portuguese Legal-Administrative Collections." Anais do XLI Simpósio Brasileiro de Bancos de Dados, São Carlos/SP, 2026. SBC, 2026, pp.224-237.