IUBMB 1961: IUBMB Enzyme Nomenclature [Internet]. London (GB): Queen Mary, University of London. [alpha-galactosidase: CAS 9025-35-8, EC 3.2.1.22 created 1961; Accessed 2012 March 28]. Available from: http://www.chem.qmul.ac.uk/iubmb/enzyme/EC3/2/1/22.html