1. K. Shimahara, Y. Takiguchi, T. Kobayashi, K. Uda, and T. Sannan, in “Chitin and Chitosan,” ed. by G. Skjak-Braek, T. Anthonsen, and P. Sandford, Elsevier, London and New York, 1989, pp. 171–178.
2. S. Hirano, in “Chitin and Chitosan,” ed. by G. Skjak-Braek, T. Anthonsen, and P. Sandford, Elsevier, London and New York, 1989, pp. 37–43.
3. A. C. M. Wu and W. A. Bough, in “Proceedings of International Conference of Chitin/Chitosan,” ed. by R. A. Muzzarelli and E. R. Pariser, MIT Sea Grant Program MITSG 78–7, Cambridge, MA, 1978, pp. 88–102.
4. S. Bartnicki-Garcia, in “Chitin and Chitosan,” ed. by G. T. Skjak- Braek, T. Anthonsen, and P. Sandford, Elsevier, London and New York, 1989, pp. 23–35.
5. S. Suzuki, K. Suzuki, A. Tokoro, Y. Okawa, and M. Suzuki, in “Chitin in Nature and Technology,” ed. by R. A. A. Muzzarelli, C. Jeuniaux, and G. W. Gooday, Plenum Press, New York, 1986, pp. 485–492.