[1] | Weber H. Laserresonatoren and Strahlyualitat. Laser and Optoelektronik. 1988; (2) |
[2] | ISO/TC 172/SC 9/WGI. Terminology and test methods for lasers. 1991-02-19 |
[3] | Laser in der Materizlbearbeitung. Institut fuer Strahlwerkzeuge, Universitaet Stattgart, 1990 |