1. Ramberg PJ (2003) Chemical structure, spatial arrangement: the early history of stereochemistry, 1874–1914. Ashgate Publishing Company, Burlington
2. Shahbazian Sh (2013) Found Chem 15:327
3. Shahbazian Sh (2013) Found Chem. doi: 10.1007/s10698-013-9187-z
4. Shahbazian Sh (2011) Int J Quantum Chem 111:4497
5. Bader RFW (1990) Atoms in molecules: a quantum theory. Oxford University Press, Oxford