Classification
YHA - Industrial property law, licensing rights
83
THI - Robotics
44
YFF - Industrial safety regulations
41
FMP - Ferrous materials, steel
31
TNA - Nuclear engineering - general
30
LTO - Biotechnology - application, industry
29
AZZ - Firm index - general
27
GWA - Raw material economy, raw material policy
25
EWA - Energy economy
21
CWE - Chemical engineering, chemical industry - general
18
TIG - Reliability, safety, quality control
18
YPW - Economy of industry branches
18
EFA - Petroleum, natural gas
17
EVA - Energy demand, energy supply - comprehensive works
17
TIF - Industrial ( occupational ) safety
15
UEN - Environmental economy
15
CWA - Chemical engineering - reference books
14
HYG - Occupational medicine, sports medicine
14
UAU - Fire, fire protection, safety at the workplace, prevention of accidents
14
UED - Environmental policy
14
EUA - Energy conservation - general
12
TAT - Engineering Standards
11
UXL - Radiation protection - general aspects
11
YRC - Technology and society
11
EPK - Nuclear energy
10
TEA - Electrical engineering - general
10
AMAB - Industrial training, further education
9
GWBA - Raw material resources, raw material reserves
9
TIE - Process engineering
9
UCQ - Environmental technology
9
USU - Waste recycling
9
YHJ - Copyright, press law
9
EVN - Energy supply - future aspects
8
EXA - Energy policy
8
LTA - Biotechnology - reference books
8
LVE - Food science - general
8
TED - Electric power - industrial aspect
8
TIA - Industrial engineering - general
8
YFA - Labour legislation
8
YNA - Patents, trademarks
8
YPG - Business management
8
CWGV - Chemical engineering - equipment, materials
7
EBA - Energy production, energy technology
7
FMPB - Steel production
7
TKB - Civil engineering - buildings
7
UKH - Environment and power plants, industrial plants
7
YPB - Economy - general aspects
7
AHA - Research and development, research politics - general
6
CNU - Electrochemical synthesis, electrochemical engineering
6
CWB - Chemical engineering - comprehensive works
6
more ...