7CHEN Guoyu(陈国虞), WANG Lili(王礼立). Ship collision with bridge and it's defences(船撞桥及其防御)[M]. Beijing: China Railway Publishing House, 2008.
8YIN Xijun(尹锡军). Study on funabashi collisions and anti-collision bridge pier facilities(船桥碰撞及桥墩防撞设施研究)[D]. Dalian: Dalian Maritime University, 2009.
9DAI Tongyu(戴彤宇). Ship impact against bridge and its risk assessment(船撞桥及其风险分析)[D]. Harbin: Harbin Engineering University, 2002.
10SAATY T L. Decision-making with the AHP: why is the principal eigenvector necessary[J]. European Journal of Operational Research, 2003, 145(1): 85-91.