Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Ritorno a zero-it#Sense
Terugkeer naar nul-nl#Sense
Rückkehr nach Null-de#Sense
Rückkehr zu Null-de#Sense
Return-to-zero-en#Sense
Επιστροφή στο μηδέν-el#Sense
Return-to-zero-da#Sense
Retour à zéro-fr#Sense
Retorno a cero-es#Sense
Vuelta a cero-es#Sense
Rückgang auf Null-de#Sense