Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Hodograaf-nl#Sense
Snelheidsveld-nl#Sense
Hodograph-de#Sense
Hodograph(velocity field)-en#Sense
Champ des vitesses(hodographe)-fr#Sense
Hodograf-da#Sense
Hodografi-fi#Sense