1. Vasudevan Aji. Tonnage Measurement of Ships: Historical Evolution, Current Issues and Proposals for the Way Forward. World Maritime University. Malmš, Sweden. http://www.wmu.sof.or.jp/fd2011_vasudevan.pdf.
2. Final Report- Research Study on the Sinking Sequence of MV Estonia. SSPA Consortium. 2008 http://www.sspa.se/files/estonia/Final-Report–Research-Study-on-the-Sinking-Sequence-of-MV-Estonia.pdf.
3. Skinner S. K., Reilly W. K. A Report to the President. The National Response Team. May 1989 http://docs.lib.noaa.gov/noaa_documents/NOAA_related_docs/oil_spills/ExxonValdez_NRT_1989_report_to_president.pdf.
4. Flightglobal - serious about aviation http://www.flightglobal.com/airspace/media/concepts/wing-in-ground-effect-craft-10404.aspx.
5. Revised Guidelines for Systems for Handling Oily Wastes in Machinery Spaces of Ships Incorporating Guidance Notes for an Integrated Bilge Water Treatment System (IBTS). MEPC.1/Circ.511. 18 April 2006. International Maritime Organization. London.