Anderson, R., Bilger, H.R., Stedman, G.E. (1994). Sagnac effect: A century of Earth-rotated interferometers. Am. J. Phys. 62 (11): 975—985. Bibcode:1994AmJPh..62..975A. doi:10.1119/1.17656.
Anderson, R., Bilger, H.R., Stedman, G.E. (1994). Sagnac effect: A century of Earth-rotated interferometers. Am. J. Phys. 62 (11): 975—985. Bibcode:1994AmJPh..62..975A. doi:10.1119/1.17656.