1. Agrawal YP, Vanha-Perttula T: The Lazymot sperm motility analyser. Novel aspects in reproductive biology. In: Publications of the University of Kuopio, Finland. 1989. 156 pp.
2. Brotherton J: Determination of human sperm count and sperm motility using a laser beam and the Doppler effect (Lazymot machine). Andrologia 1988, 20, 33–43.
3. Budworth PR, Amann RP, Chapman PL: Relationships between computerized measurements of motion of frozen-thawed bull spermatozoa and fertility. J. Androl. 1988, 9, 41–54.
4. Heiskanen M-L, Pirhonen A, Mäenpää PH: Comparison of Lazymot Analyser and manual methods in determining stallion sperm count and motility. J. Reprod. Fert. 1991. Suppl. 44, 651–652.
5. SAS (Statistical Analysis System): SAS User’s Guide: Statistics. SAS Institute Inc., Cary, N.C. 1985.