1. Brown, I. D. (2002). In The Chemical Bond in Inorganic Chemistry: The Bond Valence Model. Oxford University Press.
2. Bruker (2008). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
3. Dowty, E. (2006). ATOMS for Windows. Shape Software, Kingsport, Tennessee, USA.
4. On enantiomorph-polarity estimation