LE, N.-T., and Nguyen Thi Nhu Yen. “ISO 4037 Narrow Spectrum X-Ray Reference Field: Simulation and Measurement”. Journal of Military Science and Technology, vol. 94, no. 94, Apr. 2024, pp. 117-21, doi:10.54939/1859-1043.j.mst.94.2024.117-121.