View source for Soaking with heavy atoms

* Bart Hazes' [http://eagle.mmid.med.ualberta.ca/tutorials/HA/ collection of properties of heavy metals]
* "Towards a rational approach for heavy-atom derivative screening in protein crystallography" by Agniswamy et al, [http://dx.doi.org/10.1107/S0907444907068849 Acta Cryst D 64, 354]
* Michael Sawaya's [http://www.doe-mbi.ucla.edu/~sawaya/tutorials/Phasing/references.html Preparing a Useful Derivative] 
* Artem Evdokimov's [http://www.xtals.org/pdfs/iodination.pdf Iodination of protein crystals for fun and profit]