1. On-line Process Control Used in the Laser Welding of Metal Sheet Lightweight Structural Panels;Ricciardi;Annals of the CIRP,1999
2. Rito N, et al. (1988) Laser Welding Method, U.S. Patent 4,745,257.
3. Baardsen EL (1975) Method of Welding Galvanized Steel, U.S. Patent 3,969,604.
4. Pennington EJ (1987) Laser Welding of Galvanized Steel, U.S. Patent 4,642,446.
5. Bilge U, et al. (1993) Laser Welding Method, U.S. Patent 5,183,992.