1. Adamsen, F.J., Barnes, E.M., Hunsaker, D.J., Bautiska, E., Clemmens, A.J., 2000. Surface irrigation and precision crop management. Proceedings of Fifth International Conference on Precision Agriculture (CD), July 16–19, 2000. Bloomington, MN, USA.
2. Ahmad, I.S., Reid, J.F., Noguchi, N., Hansen, A.C., 1999. Nitrogen sensing for precision agriculture using chlorophyll maps. ASAE paper No. 99-3035, American Society of Agricultural Engineers, St. Joseph, MI, USA.
3. Anom, S.W., Shibusawa, S., Sasao, A., Sakai, K., Sato, H., Hirako, S., Blackmore, S., 2000. Soil parameter maps using the real-time spectrophotometer. Proceedings of Fifth International Conference on Precision Agriculture (CD), July 16–19, 2000. Bloomington, MN, USA.
4. Precision farming the environmental challenge;Auernhammer;Computers and Electronics in Agriculture,2001
5. Auernhammer, H., Demmel, M., Maidl, F.X., Schmidhalter, U., Schneider, T., Wagner, P., 1999. On-farm communication system for precision farming with nitrogen real-time application. ASAE Paper No. 99-1150, American Society of Agricultural Engineers, St. Joseph, MI, USA.