Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/5206001
Is Reference of Σύστημα διαχείρισης μελανών υδάτων-el#Sense
Sistema de águas negras-pt#Sense
Rensningsanlæg-da#Sense
Schwarzwassersystem-de#Sense
Sistema de aguas negras-es#Sense
Käimlareoveesüsteem-et#Sense
Sistema di trattamento delle acque reflue-it#Sense
Fekálna sústava-sk#Sense
Système d'eaux noires-fr#Sense
Systém separace černé vody-cs#Sense
Система за пречистване на отпадни води-bg#Sense