1. Hoffman, I., Protein Crystallization for Structure Based Drug Design, in this book.
2. Drenth, J. (2006) Principles of Protein X-Ray Crystallography. Springer.
3. Ogata, C. (2009) Private communications.
4. http://www.rigaku.com/generators/fre-plus.html
5. http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/xrayc.html
; Image reproduced with permission from R. Nave (2010)