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"Two-dimensional Bragg cell LDV system using multiple light frequencies" by W. Michael Farmer; Applied Optics, vol. 17, No. 2, Jan. 1978 pp. 166-168. |
"Grating diffraction spectra as coherent light sources for two-or three-beam interferomerty" by A. Lohmann; Optical Acta; Int'l Journal of Optics vol. 9, No. 1, Jan. 1962 pp. 1-12. |
Nuclear Instruments & Methods in Physics Research./B vol. 40/41, No. II Apr. 1989, Amsterdam, NL pp. 1178-1181; W. G. Davies "The design of ion-optial systems for medical and industrial application", paragraphs 4-paragraph 5; FIGS. 2-3. |