TY - Journal of Beijing University of Posts and Telecommunications A1 - YANG Hong-yu, ZHANG Le, ZHANG Liang T1 - An Information System Risk Assessment Method Based on Risk Propagation Y1 - 2021-07-13 00:00:00.0 JF - Journal of Beijing University of Posts and Telecommunications JO - Journal of Beijing University of Posts and Telecommunications SP - 41 EP - 48 VL - 44 IS - 4 UR - {https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2021-019} N1 - 10.13190/j.jbupt.2021-019 ER -