1. Anselin, L., Bongiovanni, R., & Lowenberg-DeBoer, J. (2004). A spatial economic approach to the economics of site-specific nitrogen management in corn production. American Journal of Agricultural Economics, 86, 675–687.
2. Bachmaier, M. (2005). Fortran programs for download: VINO.EXE in Confidence set for the economically optimum nitrogen fertilization in the quadratic model; and VINI.EXE in Test and confidence set for the difference of economically optimal nitrogen application rates in high- and low-yielding sites when modeling parabolae with equal quadratic coefficients. Available on http://www.tec.wzw.tum.de/pflanztech/englisch/personen/bachmaier/bachmaier.html . Accessed 5 July 2008.
3. Bachmaier, M., & Gandorfer, M. (2007). Computing and analyzing confidence intervals for the economically optimal nitrogen rate with respect to prices, nitrogen rate trial design and modeling. Elektronische Zeitschrift für Agrarinformatik, 2, 22. http://www.ezai.org/index.php/eZAI/article/view/22/23 . Accessed 5 July 2008.
4. Bartlett, M. S. (1937). Properties of sufficiency and statistical tests. Proceedings of the Royal Society, Series A, 160, 268–282.
5. Boyd, D. A., Yuen, L. T. K., & Needham, P. (1976). Nitrogen requirement of cereals. Journal of Agricultural Science, 87, 149–162.