Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Efficiency index-en#Sense
Efficiëntie-index van Armitage-nl#Sense
Δείκτης αποτελεσματικότητας-el#Sense
Indice di efficienza-it#Sense
Índice de eficiencia-es#Sense
Efficiens-indeks-da#Sense
Tehokkuusindeksi-fi#Sense
Doeltreffendheidsindex van Armitage-nl#Sense
Índice de eficiência-pt#Sense
Effizienzindex-de#Sense
Indice di efficienza di Armitage-it#Sense
Effektivitetsindex-sv#Sense