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Fertilizers, crop quality and economy : proceedings of a study week on the use of fertilizers and their effect on crop growth, with emphasis on quality and economy, April 10th-16th 1972 /
Biotechnologies at soil fertility inorease : Proceedings Bratislava, 21.-24.9.1987.
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Mikrozirkulationsstörungen und Diapedeseblu tungen im fetalen Gehirn bei Hypoxie : Tierexperimentelle Untersuchungen über den präventiven Effekt von Fibrinolyse-Inhibitoren /
Human fertilization : symposium Essen, July 1976 /