D.F. Elliott, G.P. Lewis, and E.W. Horton, Biochem. J., 76, 16P (1960). (Original; Bovine)

E.D. Nicolaides and H.A. DeWald, J. Org. Chem., 26, 3872 (1961). (Chem. Synthesis) 

Bradykinin, Kallidin and Kallikrein, Handbook of Experimental Pharmacology, Vol. 25, Suppl., Springer-Verlag, Berlin, 1979. (Review)

J.V. Pierce and M.E. Webster, Biochem. Biophys. Res. Commun., 5, 353 (1961). (Original; Human)

E.G. Erdös (ed.) Bradykinin, Kallidin and Kallikrein, Handbook of Experimental Pharmacology, Vol. 25, Springer-Verlag, Berlin, 1970. (Review)

E.G. Erdös (ed.) Bradykinin, Kallidin and Kallikrein, Handbook of Experimental Pharmacology, Vol. 25, Springer-Verlag, Berlin, 1970. (Review)