1. IACS, Unified requirements UR Z7, Hull classification Surveys, 1990, revision 26 (2018)
2. IMO, Survey guidelines under the harmonized system of survey and certification (HSSC), Annex 5 Survey guidelines under mandatory codes, International certificate of fitness for the carriage of liquified gases in bulk, Resolution A.1120(30). Accessed 6 Dec 2017
3. DNV GL rules for classifications: Ships, DNVGL-RU-SHIP Pt.7 Ch.1 Sec.7 [4] Data management, Edition July (2018)
4. DNV GL rules for classification: Offshore units, DNVGL-RU-OU-0300 Ch.2 Sec.5 Application of data. Edition July (2018)
5. DNV GL class guideline, Finite element analysis, DNVGL-CG-0127, February 2016