Selvam, R., et al. “Synthesis of Biologically Important Angiotensin-II and Angiotensin-IV Peptides by Using 4-(2’,4’-Dimethoxypenyl-Fmoc-Aminomethyl)phenoxy Resin”. Asian Journal of Chemistry, vol. 25, no. 15, Sept. 2013, pp. 8673-6, doi:10.14233/ajchem.2013.14998.