1. Vitamin B12: chemistry and biochemistry
2. Gerfen, G. J.InChemistry and Biochemistry of B12;Banerjee, R., Ed.John Wiley & Sons:New York, 1999; pp165–195.
3. The Many Faces of Vitamin B12: Catalysis by Cobalamin-Dependent Enzymes
4. Ragsdale, S. W.; Kumar, M.; Zhao, S.; Menon, S.; Seravalli, J.; Doukov, T.InVitamin B12 and B12-Proteins;Krautler, B., Ed.Wiley-VCH:Weinheim, Germany, 1998; pp167–177.
5. Matthews, R. G.InChemistry and Biochemistry of B12;Banerjee, R. V., Ed.John Wiley & Sons:New York, 1999; pp681–707.