Outline of the contents: W~s:SN
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1. Basic Interferometers for Optical Testing -tp3qi
2. Phase-Shifting Interferometry \#gguq?[
3. Specialized Optical Tests aLwEz}-
4. Long Wavelength Interferometry 'yh)6mid
5. Testing of Aspheric Surfaces IcNZUZGE
6. Measurement of Surface Microstructure F'ez{B\AX
7. Absolute Measurements q^L"@Q5;
8. Concluding Remarks