Classification
YDX - Contract law
119
YCA - Public law
22
YDS - Building law
12
YDM - Commercial law, commercial legislation
6
YPG - Business management
4
YDA - Administrative law
3
ACE - Germanic languages, Indo-Germanic languages
1
AHA - Research and development, research politics - general
1
AXN - Phrase books, language courses
1
DZE - Data privacy, data security
1
TKB - Civil engineering - buildings
1
UXPN - Nonproliferation, nuclear weapons
1
YBB - Law - general
1
YDZ - Data protection law
1
YHA - Industrial property law, licensing rights
1
YHJ - Copyright, press law
1
YKM - Civil legislation
1
YRA - Social studies
1
YRC - Technology and society
1
YRD - Technology assessment
1
YRG - Technology transfer
1