Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Heel-to-toe correction works-en#Sense
Échelle de barrages-fr#Sense
Scalinata di griglie-it#Sense
Sistemazione a gradinata-it#Sense
Secuencia de diques transversales-es#Sense
Step-wise correction works-en#Sense
Diques escalonados-es#Sense
Sperren-Staffel-de#Sense