1. D. J. Carlsson and D. M. Wiles, in Encyclopedia of Polymer Science and Engineering, Vol. 4, edited by H. F. Mark, N. M. Bikales, C. G. Overberger, and G. Menges (John Wiley & Sons, New York, 1986a), p. 665.
2. A. L. Andrady, M. B. Amin, S. H. Hamid et al., in Environmental Effects Panel Report. 1991 Update (United Nations Environmental Program, Nov. 1991b), p. 45.
3. W. Schnabel, in Polymer Degradation. Principles and Practical Applications (Hanser Publishers, 1981), p. 98.
4. N. S. Hon, J. Polymer Sci., A1 13, 1347 (1975).
5. A. Sakakibara, in Wood and Cellulosic Chemistry, edited by D. N.-S. Hon, and N. Shiraishi (Marcel Dekker, New York, 1991), p. 114.