Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Wave refraction-en#Sense
Bølgebrydning-da#Sense
Aallon taittuminen-fi#Sense
Vågbrytning-sv#Sense
Διάθλαση κύματος-el#Sense
Golfbreking-nl#Sense
Wellenbrechung-de#Sense
Réfraction d'onde-fr#Sense
Rifrazione dell'onda-it#Sense
Refração de onda-pt#Sense
Refracción de una onda-es#Sense