Items where Year is 1990
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Number of items: 3.
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Hartog, P. (1990) Degradation of tropical mountain forest in the upper watershed of the river Konto (East Jawa, Indonesia): a qualitative and quantitative approach. Master's Thesis / Essay, Biology.
Huisman, J. (1990) Primary succession on a beach plain: species dynamics in relation to bioimass and nutrient accumulation. Master's Thesis / Essay, Biology.
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Pruis, J. (1990) Effecten van begrazing op Festuca Rubra. Master's Thesis / Essay, Biology.