IATE-1595677

Subject Field	unknown
Is Reference of	Block system-en#Sense
	Blocksystem-de#Sense
	Blok-nl#Sense
	Block-system-fr#Sense
	Bloqueo-es#Sense
	Strækningsblok-da#Sense
	Streckenblock-de#Sense
	Cantonnement-fr#Sense
	Blokstelsel-nl#Sense
	Blocco-it#Sense
	Sistema di blocco-it#Sense
	Block-fr#Sense
	Σύστημα αποκλεισμού-el#Sense
	Block-system-es#Sense
	Linjeblok-da#Sense