1. Ambrose, E. J. and Elliott, A.Proc. Roy. Soc., 1951,206A, 206.
2. Astbury, W. T.J. Intern. Soc. Leath. Trades’ Chemists, 1940,24, 69.
3. Badger, R. M. and Pullin, A. D. E.J. Chem. Phys., 1954,22, 1142.
4. Bear, R. S.Adv. Protein Chem., 1952,7.
5. Bolduan, O. E. A., Salo, T. P. and Bear, R. S.J. Am. Leath. Chem. Assocn., 1951,46, 124.