Wouters-1989-Proceedings of the Symposium Invertebrates of Belgium-437-442.pdf
Maelfait, J.-P., Desender, K. & Baert, L. 1989.
Some examples of the practical use of spiders and carabid beetles as ecological indicators.
Invertebraten van Begië - Invertébrés de Belgique: 437-442
wouters-1989-proceedings-of-the-symposium-invertebrates-of-belgium-437-442.pdf
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