1. Allison, M.F., M.J. Armstrong, K.W. Jaggard, A.D. Todd, and G.F. Milford. 1996. An analysis of the agronomic, economic and environmental effects of applying N fertilizer to sugarbeet (Beta vulgaris). Journal of Agricultural Science, Cambridge 127: 475–486.
2. Akyar, O.C., M. Cagatay, E. Kayimoglu, A. Özbek, and S. Titiz. 1980. Über die Beziehung zwischen dem bereinigten Zuckergehalt und der chemischen Zusammensetzung der Zuckerrübe. Zuckerindustrie 105: 457–466.
3. Berghall, S., S. Briggs, S.E. Elsegood, L. Eronen, J.O. Kuusisto, E.J. Philip, T.C. Theobald, and P. Walliander. 1997. The role of sugar beet invertase and related enzymes during growth, storage and processing. Zuckerindustrie 122: 520–530.
4. Bell, C.I., J. Jones, G.F.J. Milford, and R.A. Leigh. 1992. The effect of crop nutrition on sugar beet quality. Aspects of Applied Biology 32: 19–26.
5. Bell, C.I., G.F.J. Milford, and R.A. Leigh. 1996. Sugar beet. In Photoassimilate distribution in plants and crops: Source-sink relationships. books in soils, plants, and the environment, vol. 48, ed. E. Zamski, and A.A. Schaffer, 691–707. New York: Marcel Dekker Inc.