1. 3rd Draft Proposal for Directive on waste electrical and electronic equipment, 76/769/EEC, EU (European Union) DGXI, 1999.
2. Chiodo J. D., Billett E., Harrison D. Active disassembly. J. Sustainable Des., October 1998.
3. Chiodo J. D, Billett E., Harrison D. Preliminary investigations of active disassembly using shape memory polymers. In 1st IEEE International Symposium on Environmentally Conscious Design and Inverse Manufacturing (EcoDesign '99), Tokyo, Japan, 1–3 Feburary 1999, pp. 590–596.
4. Chiodo J. D., Billett E., Harrison D. Active disassembly using shape memory polymers for the mobile industry. In IEEE International Symposium on Electronics and the Environment (ISEE), Danvers, Massachusetts, 11–13 May 1999, pp. 151–156.
5. Chiodo J. D., Billett E., Harrison D. Shape memory alloy actuators for ADSM of consumer electronic products. In 38th Gateway Annual Conference of Metallurgists, Quebec City, Quebec, Canada, 22–26 August 1999, pp. 425–439.