1. and in Degradable Materials, p. 263, et al. eds., CRC Press, Boca Raton, Fla. (1990).
2. Hierarchical Structures in Biology as Guide for New Materials Technology, National Research Council, NMAB-464, National Academy Press, Washington D.C. (1994).
3. and in Macromolecular Design of Polymeric Materials, p. 793, and eds., Marcel Dekker Inc., (1997).
4. and in Chemistry and Technology of Biodegradable Polymers, p. 7, ed., Blackie Academic & Professional, London (1994).