1. Sub-micron position measurement and control on precision machine tools with laser interferometry;Steinmetz;Precision Engineering,1990
2. A new laser measurement system for precision metrology;Sommargren;Precision Engineering,1987
3. Längen in der Ultrapräzisionstechnik messen;Spies;Feinwerktechnik & Meβtechnik,1990
4. High-accuracy displacement interferometry in air;Tyler Estler;Applied Optics,1985