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Verlinden, L. & Decleer, K. 1987.
The Hoverflies (Diptera, Syrphidae) of Belgium and their faunistics: Frequency, distribution, phenology.
Vol. 39
Text / Texte / Tekst 3-85
Text / Texte / Tekst 86-130
Text / Texte / Tekst 131-170
Cover / Couverture / Omslag
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