50 Taun WWF Floodplain Reserve Marchegg
50 taun konservasi biodiversitas Inpormasi langkung seueur: https://www.wwf.at/das-schuetzen-wir/fluesse/march-thaya-auen/
50 taun konservasi biodiversity
Inpo leuwih: https://www.wwf.at/das-schuetzen-wir/fluesse/march-thaya-auen/