Classification
HPA - Drug lists, pharmacopoeias, pharmacologic glossaries
9
CR - Nuclear chemistry, radiation chemistry
8
CEC - Organic chemistry - comprehensive works
3
THA - Mechanical engineering - general
3
YEE - Law on radiation protection
3
AHK - Scientific work
2
AYA - Sciences - general aspects
2
CAA - Chemistry - reference books
2
CEB - Houben - Weyl handbook
2
CUUB - NMR (Nuclear Magnetic Resonance) spectroscopy
2
DKAL - Linux - operating system
2
LON - Molecular genetics
2
PAD - Physics - comprehensive works
2
TNI - Reactor physics
2
ACE - Germanic languages, Indo-Germanic languages
1
CAD - Chemistry - comprehensive works
1
CAU - Laboratory and safety engineering in chemistry
1
CBB - Inorganic chemistry - comprehensive works
1
CEF - Organic chemistry - introductions
1
CEO - Natural organic products
1
CHGM - Physical chemistry of organic compounds - incl. physical properties
1
CHJH - Stereochemistry
1
CTTE - High performance liquid chromatography
1
CTV - Thin layer chromatography
1
CXUX - Natural products
1
DKA - Operating systems
1
DKAE - Windows
1
DNA - Computer networks, local area networks
1
DNC - Internet
1
DOE - Programming language - BASIC, Turbo BASIC, Visual BASIC
1
DOF - Programming language - C, Turbo C, C# (C sharp)
1
GFA - Mineralogy - general
1
HAE - Popular medicine
1
HBC - Physiological chemistry, biochemistry
1
HPD - Pharmacology - comprehensive works
1
HPM - Pharmaceutical industry
1
HPT - Toxicology
1
HRD - Dosimetry, radiation protection - medical aspects
1
HYB - Public health, health politics
1
LKD - Biochemistry - comprehensive works
1
LLH - Protein chemistry - methods
1
PJA - Atomic physics - general
1
PKG - Accelerators
1
TAA - Engineering sciences - reference books
1
TBG - Transistors
1
TGE - Measuring instruments
1
TGN - Control engineering
1
THJ - Machining
1
THT - Vacuum technique
1
TIG - Reliability, safety, quality control
1
more ...