1. Abaqus, 2013. Abaqus User Subroutine Reference Manual. Dassault Systems, Providence, USA.
2. X-ray scattering used to map the preferred collagen orientation in the human cornea and limbus;Aghamohammadzadeh;Structure (London, England : 1993),2004
3. Biomechanical modeling of refractive corneal surgery;Alastrue;J. Biomech. Eng.,2006
4. Bennet, A., Rabbetts, R., 1989. Clinical Visual Optics, vol. 2nd ed. Butterworths, London.
5. Collagen fibrils appear more closely packed in the prepupillary cornea;Boote;Invest. Ophthalmol. Vis. Sci.,2003