1. Evaluation of Ballooning in Deep Wells. Modern Well Design, Appendix B;Aandøy,1996
2. Stability of highly inclined wellbores;Aadnoy;SPE Drill. Eng.,1987
3. Theory Reference;ANSYS,2002
4. Pressurization of a fractured wellbore;Atkinson;Int. J. Fract.,1997
5. Changes in active volume due to variations in pressure and temperaure in HPHT wells;Bjørkevoll,1994