1. 2) S. Copinathan, J. Murthy, T. D. MaCay, and M. H. McCay: Proc. ICALEO ’93 (1993) p.661.
2. 3) C. Lampa, J. Powell, and C. Magnusson: Proc. ICALEO ’97, 83 Section G (1997) p.171.
3. 4) H. Shen and M. C. Gupta: Proc. ICALEO 2001, Section C (2001) 1302. (CD ROM)
4. 6) E. Beyer: Laser Technology for New Markets -Application Highlights, (Laser Market Place, 2003).
5. 7) S. Kimura, S. Takemura, M. Mizutani, and S. Katayama: Congress Proc. ICALEO 2006 (25th Int. Cong. on Applications of Lasers & Electro-Optics) LIA (2006) p.346.