1. J. Seiberlich,Mod. Plastics 18(7), 64?65 (1941).
2. E. B. Bagley, G. F. Fanta, R. C. Burr, W. M. Doane, and C. R. Russell,Polym. Eng. Sci. 17 311?316 (1977).
3. G. J. L. Griffin, Biodegradable synthetic resin sheet material containing starch and a fatty acid, U.S. Patent 4016117 (1977).
4. F. H. Otey, R. P. Westhoff, and C. R. Russell, inSymposium Papers, Technical Symposium (Nonwoven Product Technology, Miami Beach, FL, 1975) pp. 40?47.
5. F. T. Stepto and I. Tompka,Chimia 41(3), 76?81 (1987).