IATE-1419980

Subject Field	unknown
Is Reference of	Ελεύθερη διάδοση-el#Sense
	Propagation libre-fr#Sense
	Directe straling-nl#Sense
	Transmission genom fri rymd-sv#Sense
	Vapaan tilan eteneminen-fi#Sense
	Propagazione libera-it#Sense
	Propagación libre-es#Sense
	Frit-rums udbredelse-da#Sense
	Free-space propagation-en#Sense
	Propagação livre-pt#Sense
	Rayonnement direct-fr#Sense
	Propagação em meio livre-pt#Sense