1. Analyzing lead-free soldering defects in wave soldering using Taguchi methods. APEX 2000, Long Beach, March 14–16 2000;Diepstraten,2000
2. Directive 1999/13/EC (1999) Limitation of emissions of volatile organic compounds due to the use of organic solvents in certain activities and installations. European Council, March 11.
3. Directive 2002/95/EC (2003). Restriction of the use of certain hazardous substances in electrical and electronic equipment. European Council, January 27.
4. Fundamentals of modern manufacturing: Materials processes and systems;Groover,2004
5. Havia, E., Bernhardt, E., Mikkonen, T., Montonen, H. & Alatalo, M. (2005). Implementation of lead-free wave soldering process. In Proceedings of electronics production and packaging technology 2005, Pori, Finland.