[Odonata-l] searching for scientific information about Libellula quadrimaculata

[Helmut Strasser]

Hello,

since I'm writing an article for the German wikipedia about the
"Libellula quadrimaculata" I'm searching for scientific papers about it.
I've already found some papers but unfortunately I have not found good
descriptions of the larvae, the diet, the exact distribution. It would
be great if anybody could send me papers about one of this points or any
other about Libellula quadrimaculata.

Thanks Helmut