Polder,Stauhaltung
[DE] Polder; Stauhaltung
[EN] check
[FR] bassin de submersion
Polder,Stauhaltung /BUILDING/
[DE] Polder; Stauhaltung
[EN] check
[FR] bassin de submersion
Jungmarsch,Koog,Polder /SCIENCE/
[DE] Jungmarsch; Koog; Polder
[EN] diked marsh; new marsh; polder
[FR] polder