Vijay Kumar Soni and Prabhu Muthusamy, “Hybrid Graph-Transformer Fraud Scoring in Tokenized Card-on-File Ecosystems”, Essex Journal of AI Ethics and Responsible Innovation, vol. 3, pp. 500–532, Jun. 2023, Accessed: Jun. 24, 2026. [Online]. Available: https://ejaeai.org/index.php/publication/article/view/76