Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Tyndingshyppighed-da#Sense
Periodicidade de um desbaste-pt#Sense
Περιοδικότης αραιώσεων-el#Sense
Thinning frequency-en#Sense
Periodicidad de los aclareos-es#Sense
Périodicité des éclaircies-fr#Sense
Frequenza dei diradamenti-it#Sense
Thinning periodicity-en#Sense
Gallringsintervall-sv#Sense