Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6811
Is Reference of P H-nl#Sense
P H-värde-sv#Sense
P H værdi-da#Sense
P H-pt#Sense
P H-de#Sense
P H-fr#Sense
P H-it#Sense
P H-sv#Sense
P H-el#Sense
P H-arvo-fi#Sense
P H value-en#Sense
P H-es#Sense
Potentiel hydrogène-fr#Sense