Geisler, G., S. A. Shrief, A. F. Ibrahim, and R. Shabana,
"Untersuchungen zum Einfluß von Konkurrenz auf die Bestandesentwicklung von Sommerraps bei unterschiedlicher Gunst der Umweltbedingungen",
Journal of Agronomy and Crop Science, vol. 169, issue 3: Blackwell Publishing Ltd Oxford, UK, pp. 193-208, 1992.
Abstractn/a
Geisler, G., S. A. Shrief, A. F. Ibrahim, and R. Shabana,
"Untersuchungen zum Einfluß von Konkurrenzbedingungen auf die Entwicklung der Bestandesstruktur von Sommerraps",
Journal of Agronomy and Crop Science, vol. 168, no. 1: Wiley Online Library, pp. 20–33, 1992.
Abstractn/a
Geisler, G., S. A. Shrief, A. F. Ibrahim, and R. Shabana,
"Untersuchungen zum Einfluß von Konkurrenzbedingungen auf die Entwicklung der Bestandesstruktur von Sommerraps",
Journal of Agronomy and Crop Science, vol. 168, issue 1: Blackwell Publishing Ltd Oxford, UK, pp. 20-33, 1992.
Abstractn/a
Land, F.,
"The {Information} {System} {Domain}",
Information {Systems} {Research} - {Issues}, {Methods} and {Practical} {Guidelines}, Oxford, Blackwell Scientific, pp. 6–13, 1992.
AbstractInformal IS are important., IS in multi-disciplinary, IS as mediating tool (model of an information system), an IS is a social system which has embedded in it information tech., IS begin to evolve and change as soon as they are implemented