Shipolin, RA.; Bailey, GS; Edwardson, JA; Banks, BCE. (August 1973). «Separation and Characterization of Polypeptides from the Venom of Dendroaspis viridis». European Journal of Biochemistry40 (2): 337-344. PMID4360896. doi:10.1111/j.1432-1033.1973.tb03202.x.
Shipolin, RA.; Bailey, GS; Edwardson, JA; Banks, BCE. (August 1973). «Separation and Characterization of Polypeptides from the Venom of Dendroaspis viridis». European Journal of Biochemistry40 (2): 337-344. PMID4360896. doi:10.1111/j.1432-1033.1973.tb03202.x.