1. Degré, Thomas, and O. Muller. 2006. The Use of Risk Concept to Contribute to the Design of a Risk Index and to Characterize and Select High Risk Vessels. Interim Technical Research Report, MarNIS Project, Research funded by the European Commission.
2. DNV paper No. 2003-P010;Det Norske Veritas (DNV),2003
3. Institute of Shipping Economics & Logistics (ISL). 2001. Shipping Statistics Yearbook 2001. Bremen: ISL.
4. Paris Memorandum of Understanding (Paris MoU). 2006. The New Inspection Regime of the Paris MoU. Internal Report on Port State Control TF 31, NIR Version 0.7, Paris MoU, Den Haag.
5. Regelink, Henk, Cees C. Glansdorp, and Dominic Jarvis. 2005. European Study for Baseline and Advanced Regional and Coastal Traffic Management. Final Policy Report, EMBARC Project, Research funded by the European Commission.