1. CAAC , 2019 Civil Aviation Airport Throughput Ranking [Z] , Beijing : Development Planning Department of Civil Aviation Administration of China , 2020 . CAAC, 2019 Civil Aviation Airport Throughput Ranking [Z], Beijing: Development Planning Department of Civil Aviation Administration of China, 2020.
2. CAAC , 2018 Civil Aviation Airport Production Statistics Bulletin [Z] , Beijing : Development Planning Department of Civil Aviation Administration of China , 2019 . CAAC, 2018 Civil Aviation Airport Production Statistics Bulletin [Z], Beijing: Development Planning Department of Civil Aviation Administration of China, 2019.
3. Analysis of Long-Range Air Traffic Systems: Separation Standards—I
4. Future Air Traffic Management: Quantitative En Route Safety Assessment Part 1 – Review of Present Methods
5. Zhang Zhaoning , Zhang Xiaoyan . Research on the risk of cross-airway collision [J]. Aviation Computing Technology , 2007 ( 2) : 1-4. Zhang Zhaoning, Zhang Xiaoyan. Research on the risk of cross-airway collision [J]. Aviation Computing Technology, 2007( 2) : 1-4.