1. ASTM, 2013. ASTM: standard practice for use of the terms precision and bias in ASTM test methods. In: E177 ed: Subcommittee E11.20 on Test Method Evaluation and Quality Control. ASTM International, West Conshohocken.
2. Digital radiography. A comparison with modern conventional imaging;Bansal;Postgrad. Med. J.,2006
3. Textbook of Radiographic Positioning and Related Anatomy;Bontrager,2010
4. Model-based Measurements in Digital Radiographs;Börlin,2000
5. The next generation of acetabular shell design and bearing surfaces;Bourne;Orthopedics,2008