1. Phase shifting interferometry;Greivenkamp,1992
2. Contributions of holography to the advancement of interferometric measurements of surface topography;de Groot;J. Light: Advanced Manufacturing,2022
3. Die Sichtbarkeit der Interferenzen beim Twyman Interferometer;Hansen;Optik,1955
4. US and foreign patents pending
5. Fourier-transform phase-shifting interferometry