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The mayflies of North and Central America حسب Edmunds, George F.

An electronic book accessible through the World Wide Web; click to view

The mayflies of Europe (Ephemeroptera) / حسب Bauernfeind, Ernst, Soldán, Tomáš

An electronic book accessible through the World Wide Web; click to view

Eintags- und Steinfliegen (Insecta: Ephemeroptera, Plecoptera) in Mittelgebirgsbachen des Harzes : Analyse und Prognose naturnaher Referenzzonosen fur die Gewasserbewertung / حسب Bohme, Dirk

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