1. A. E. Jensen, “Absolute calibration method for laser Twyman-Green wave front testing interferometers”, J. Opt. Soc. Am. 63, 1313A (1973)
2. B. Dörband, G. Seitz, “Interferometric testing of optical surfaces at its current limit”, Optik 112, No. 9 (2001)
3. J. Schwider, “Absolutprüfung von asphärischen Flächen unter Zuhilfenahme von diffraktiven Normalelementen und planen sowie sphärischen Referenzflächen”, German patent 19822453.2 (20. June 1998)
4. A. F. Fercher, “Computer-generated holograms for testing optical elements: error analysis and error compensation”, Opt. Acta 23 (1976)
5. M. Küchl, “Apparatus and method(s) for reducing the effects of coherent artifacts in an interferometer”, Patent-No. 6,804,011 (2004)