Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6621
Is Reference of Nombre de masse-fr#Sense
Número de masa-es#Sense
Atomgewicht-de#Sense
Mass number-en#Sense
Rough atomic weight-en#Sense
Massenzahl-de#Sense
Masse atomique-fr#Sense