Deutsche Einheitsverfahren zur Wasser-,
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H. Caspers
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Article
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1984
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John Wiley and Sons
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English
⚖ 101 KB
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Rook Reviews biology of the sl~eciea and the remark thht there is abundant scope for future investigations on their ecology and the aidvice that as marly details of as many habitat fen.tures aa possible should be recorded. The faniiliiil nnd generic groupings urgently require revision. GIBSON diride