1. The essential groups of insulin;Fraenkel-Conrat;Biochim. et biophys. acta,1950
2. The structure of pig and sheep insulins;Brown;Biochem. J.,1955
3. Species differences in insulin;Harris;Arch. Biochem.,1956
4. Insulin peptides. X. The synthesis of the B-chain of insulin and its combination with natural or synthetic A-chain to generate insulin activity;Katsoyannis;J. Am. Chem. Soc.,1964
5. Synthesis of insulin chains and their combination to form biologically active products;Zahn;Ztschr. Ges. Textil-Ind.,1964