3Quangen FANG,Shenping HU,Yongtao XI,Study on Risk Assessment and Control of Ship Safety Navigation[C].Proceedings of The 2nd IET International Conference on System Safety 2007,Oct 22-24,London,UK.
4Hu Shenping,Fang Quangen,Xia Haibo.Study on Formal Safety Assessment on Ship navigaiton and Modeling based on Relative Risk,Proceeding of The 4th International Conference on Quality and Reliabliity (ICQR2005)[J].Beijin:Beijing Instituteof Technology Press.2005:575-581,ISBN 7-81045-742-X.