Yu, J., Huang, W., Wang, L., Redshaw, C., & Sun, W. H. (2011). 2-[1-(2,6-Dibenzhydryl-4-methylphenylimino)ethyl]-6-[1-(arylimino)ethyl] pyridylcobalt(ii) dichlorides: Synthesis, characterization and ethylene polymerization behavior. Dalton Transactions : an international journal of inorganic chemistry, 40(39), 10209-10214. https://doi.org/10.1039/c1dt11062d