1. R. E. Chance, J. A. Hoffmann, E. P. Kroeff, M. G. Johnson, E. W. Schirmer, W. W. Bromer, M. J. Ross, and R. Wetzed, in “Peptides: Synthesis, Structure and Function,” Proceedings 7th American Peptide Symposium (D. H. Rich and E. Gross, eds.), pp. 721-728. Peirce Chem. Co., Rockford, Illinois, 1981.
2. Number of ways of joining SH groups to form multi-peptide chain proteins