• 

  Artenliste der Libellen Europas

  http://www.fdickert.de/libellen/libsyseu.php

  Artenliste der Libellen Europas

• 

  Homepage of Dr. Günter Bechly

  https://archive.today/20130106105113/http://www.bernstein.naturkundemuseum-bw.de/odonata/gbechly.htm

  Homepage of Dr. Günter Bechly

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