1. Doi Y.: Microbial Polyesters, p. 645. New York: VCH Publishers 1992.
2. Lenz R.W.: Advances in Polymer Science, vol. 107, p. 1. Berlin: Springer 1993.
3. Ottebrite R.M., Albertsson A.C., Scott G.: Biodegradable Polymers and Plastics (Vert M., Feijen J., Albertsson A.C., Scott G., Chiellini E., eds.), vol. 73. Cambridge: RSC 1992.
4. Albertsson A., Karlsson S.: J. Appl. Polym. Sci.35, 1289–1302 (1988)
5. Hung J.C., Shetty A.S., Wang M.S.: Adv. Polym. Tech.10, 23 (1990)