Outline of the contents: x)%% 5
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1. Basic Interferometers for Optical Testing ksxO<Y
2. Phase-Shifting Interferometry w}]3jc84
3. Specialized Optical Tests ZA 99vO
4. Long Wavelength Interferometry e2,<,~_K6
5. Testing of Aspheric Surfaces Q;{D8 #!
6. Measurement of Surface Microstructure ?w c3+?\J
7. Absolute Measurements ;7B2~zL
8. Concluding Remarks