13 Sites in German [de]
Fotofreunde-Hagen e. V.
Thorsten's Blog
National Contact Point Open Access
Ekološka Udruga Zrmanja Vrelo (Hrvatska)
de: Webseite des Naturschutz Vereins Zrmanja Vrelo (Kroatien).
en: Website of the ecological association Zrmanja Vrelo (Croatia).