Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6831
Is Reference of Heberwerhr-de#Sense
Siphon weir-en#Sense
Hævert-da#Sense
Lappopato-fi#Sense
Σιφωνωτόν φράγμα-el#Sense
Sifonipato-fi#Sense
Hävertdamm-sv#Sense
Barragem de sifão-pt#Sense
Barrage à siphon-fr#Sense