Massaro, Alessandro, Vincenzo Maritati, and Angelo Galiano. “Automated Self-Learning Chatbot Initially Build As a FAQs Database Information Retrieval System: Multi-Level and Intelligent Universal Virtual Front-Office Implementing Neural Network”. Informatica 42, no. 4 (November 6, 2018). Accessed January 9, 2026. https://www.informatica.si/index.php/informatica/article/view/2173.