T. Shobha, R. Rashmi, L. R. Chaitanya, C. V. Medhini, R. J. Chandana, Sumukh P. Gowda. "A multi-layer airport security framework using YOLO-based X-ray detection, video anomaly analysis, IoT sensor monitoring and blockchain logging." Scientific Reports, 2026. doi:10.1038/s41598-026-52894-w