1. American Petroleum Institute. (2005). ISO 13628-7, (Identical) Petroleum and natural gas industries—Design and operation of subsea production systems—Part 7: Completion/workover riser systems. Washington, D.C.: API Publishing Services.
2. American Petroleum Institute. (2011). ISO 19901-4, (Modified) Petroleum and Natural Gas Industries--Specific Requirements for Offshore Structures, Part 4--Geotechnical and Foundation Design Considerations. Washington, D.C.: API Publishing Services.
3. Evans, J. T., & McGrail, J. (2011). An Evaluation of the Fatigue Performance of Subsea Wellhead Systems and Recommendations for Fatigue Enhancements (p. 12). Presented at the Offshore Technology Conference, Houston, Texas. https://doi.org/10.4043/21400-MS
4. Harildstad, E., & Haukanes, A. (2013). Effects of BOP Stack Modelling on Estimated Wellhead Fatigue Damage (Master Thesis). Norwegian University of Science and Technology, Department of Marine Technology, Trondheim, Norwegian. Retrieved from http://hdl.handle.net/11250/238415
5. Illendala, P. K. (2012). Structural Analysis to determine the stress induced loading on Wellhead Housing system supported by CAN and Sea bed BOP Supporter (Masther’s Thesis). University of Stavanger, Faculty of Science and Technology, Stavanger, Norway.