Literaturrecherche

Literatur Neander E (1986) Tendenzen der Strukturentwicklung in der Landwirtschaft bis zum Jahre 2000. Arb DLG 186:7-18

Literatur Bommer D, Qureshi AW (1986) Improving ruminant production systems in the Middle East and North Africa. In: Animal production : alternatives in ruminant livestock production in North Agrica and the Middle East : 3rd International DLG-Symposium on the occassion of DLG-Ausstellung '86 ; May 3-7, Goslar, Federal Republic of Germany. Frankfurt a M: DLG, p 26