Outline of the contents: BerwI
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1. Basic Interferometers for Optical Testing \j.:3Xr
2. Phase-Shifting Interferometry ?fS9J
3. Specialized Optical Tests
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4. Long Wavelength Interferometry J8~haim
5. Testing of Aspheric Surfaces L=h'Qgk%
6. Measurement of Surface Microstructure uIrG* K
7. Absolute Measurements .8|X
8. Concluding Remarks