Classification
ACA - Languages, dictionaries - general
78
ACE - Germanic languages, Indo-Germanic languages
7
YPH - Secretarial work, office management
3
AET - Universities, academies - Europe
1
AFA - Research institutions, scientific organizations - international and supranational
1
AHK - Scientific work
1
AMA - Education - general
1
DMC - Computer programs
1
DNC - Internet
1
EAB - Energy - dictionaries
1
EIA - Solar energy - general
1
YPB - Economy - general aspects
1
YZA - Politics, political science
1
ZBAB - Dictionaries
1