Classification
YNA - Patents, trademarks
168
YHA - Industrial property law, licensing rights
76
YBB - Law - general
42
ZBEBB - Subject indexing
9
YKP - German civil law
7
YHJ - Copyright, press law
5
ACE - Germanic languages, Indo-Germanic languages
4
AMAB - industrial training, further education
4
TAA - Engineering sciences - reference books
4
ACA - Languages, dictionaries - general
3
AMA - Education - general
3
AMAB - Industrial training, further education
3
YAB - Law, economy, social affairs - dictionaries
3
YDA - Administrative law
3
YCA - Public law
2
YDMB - Trade law
2
YPH - Secretarial work, office management
2
AHL - Presentations, lectures, discussions
1
DAA - Information technology - reference books
1
DNC - Internet
1
EBA - Energy production, energy technology
1
FAA - Materials research - reference books
1
FFPE - Thin film electronic properties, semiconductor interfaces
1
FGN - Nanotechnology
1
FJLB - Physics of semiconductor devices
1
HBC - Physiological chemistry, biochemistry
1
LKD - Biochemistry - comprehensive works
1
LTE - Biotechnology - general aspects
1
LTO - Biotechnology - application, industry
1
LTU - Genetic engineering
1
TAB - Engineering sciences - dictionaries
1
TBV - Electronic devices
1
TCA - Communication science - general
1
TGB - Metrology
1
TGN - Control engineering
1
THD - Design and construction in mechanical engineering
1
TKA - Civil engineering - general
1
YBA - Law - encyclopaedic glossaries
1
YEC - Law on waters
1
YEN - Atomic energy law
1
YKM - Civil legislation
1
YMA - International law
1
YMG - Law of international and supranational organizations
1
YPC - Public administration
1
YPF - Labour science
1
YZA - Politics, political science
1