Classification
UA - Environment - general
22
TNA - Nuclear engineering - general
20
UXV - Radioactive waste disposal - interim and final
16
ACE - Germanic languages, Indo-Germanic languages
15
CAA - Chemistry - reference books
15
DKAE - Windows
12
UXW - Underground disposal of radioactive waste
12
CR - Nuclear chemistry, radiation chemistry
11
DOE - Programming language - BASIC, Turbo BASIC, Visual BASIC
11
FNX - Carbon, carbon materials
11
THA - Mechanical engineering - general
11
UXS - Radioactive waste management
11
THQ - Fluid mechanics and dynamics
10
DKAN - Networks operating systems
9
TAA - Engineering sciences - reference books
9
PAD - Physics - comprehensive works
8
THM - Heat transfer, mass transfer - technical aspects
8
UXA - Environmental radioactivity
8
CBA - Gmelin handbook
7
DMA - Programming
7
EPK - Nuclear energy
7
TNI - Reactor physics
7
TNO - Nuclear reactor safety
7
CRHF - Chemistry of radioactive elements
6
DOFC - Programming language - C plus-plus
6
DOZ - Programming languages - Other
6
DTAF - MS - Excel
6
FAA - Materials research - reference books
6
FNS - Glass, vitreous ceramics
6
PAA - Physics - reference books
6
CWE - Chemical engineering, chemical industry - general
5
DUAL - Typesetting - TeX/LaTeX
5
MAK - Mathematics - formulae, tables
5
PKF - Elementary particles, nuclei - measuring methods and instruments
5
TND - Gas cooled reactor types
5
TNJ - Nuclear reactor technology
5
ACA - Languages, dictionaries - general
4
CRC - Nuclear chemistry
4
CUK - X-ray spectroscopy
4
CUW - Mass spectroscopy
4
DTAD - MS - Word
4
DTAE - MS - Access
4
DTAI - MS - Office package - diverse
4
LVN - Food science - chemistry, analytics
4
PKP - Radioactivity, electromagnetic transitions
4
TEA - Electrical engineering - general
4
UXL - Radiation protection - general aspects
4
UXY - Radioactive fuel reprocessing
4
YBB - Law - general
4
CRCD - Nuclear reactions
3
more ...