1"DNV-OS-C401, Fabrication and testing of offshore structures", Det Norske Veritas, April 2004.
2"Rules for planning and execution of Marine Operations", Det Norske Veritas, January 1996.
3"Notes on heavy design lifting", by J.G. Mayfield, Lowell Johnston & Assocs. Inc., and M.E. Zimmerman, chevron U.S. A. Inc. (In 1986 offshore Technology Conference).
