Classification
YPG - Business management
11
YBB - Law - general
8
YDS - Building law
7
YPJ - Accounting
7
YFD - Public service legislation
6
ACE - Germanic languages, Indo-Germanic languages
5
DMC - Computer programs
5
DZE - Data privacy, data security
5
TAA - Engineering sciences - reference books
4
YDM - Commercial law, commercial legislation
3
YDZ - Data protection law
3
YPI - Corporate governance
3
TCC - IT - Information and telecommunication
2
TIG - Reliability, safety, quality control
2
YDX - Contract law
2
YPB - Economy - general aspects
2
ACH - Romance languages
1
AHP - Philosophy
1
AQPT - Bibliographies and databases on special subjects
1
DAE - Information technology - general
1
DKAE - Windows
1
DPA - Electronic data processing - applications
1
DTAF - MS - Excel
1
DWA - Database systems
1
MWHA - General aspects of statistics
1
PLA - Astrosciences - general
1
TKA - Civil engineering - general
1
UXL - Radiation protection - general aspects
1
YDG - Tax legislation
1
YEE - Law on radiation protection
1
YFA - Labour legislation
1
YFH - Social legislation
1
YKA - Criminal legislation
1
YPD - Business economics
1
YPGE - Human resource planning, human resource management
1
YPGH - Planning and controlling
1
YRA - Social studies
1