References
1. NIST computational chemistry comparison benchmark database. http://srdata.nist.gov/cccbdb/ accessed on 2/19/2013.
2. Spectral database for organic compounds.  http://riodb01.ibase.aist.go.jp/sdbs/cgi-bin/direct_frame_top.cgi accessed on 2/19/2013.
3. Bode, B. M. and Gordon, M. S. J. Mol. Graphics Mod., 16, 1998, 133-138.
4. GAMESS. http://www.msg.ameslab.gov/gamess/references.html accessed on 2/19/2013.
5. Jmol: an open-source Java viewer for chemical structures in 3D. http://jmol.sourceforge.net/ accessed on 2/19/2013.
6. Seamonkey. http://www.seamonkey-project.org/ accessed on 2/19/2013.
7. IGOR Pro. http://www.wavemetrics.com/products/igorpro/igorpro.htm accessed on 2/19/2013.
8. Gutow J.,"Molecular Orbital (MO) Calculations" handout in Chem 370 Class at UW Oshkosh, Spring 2013.