Classification
LAN - Biology - mathematical methods, statistics
54
LAA - Biology - reference books
45
LAM - Biology - theoretical and philosophical fundamentals
35
MSH - Mathematical methods in life sciences
20
EVB - Energy supply of Germany
16
EHA - Renewable energy sources
14
L - Life sciences ( journals )
14
LAD - Biology - comprehensive works
14
LMN - Molecular biophysics, biophysical chemistry
14
LKA - Biochemistry - reference books
11
LTU - Genetic engineering
11
LCK - Ecology - general aspects
10
HAN - Medicine - mathematical methods, computer applications, databases
9
LGR - Animal physiology
9
LTE - Biotechnology - general aspects
9
LAL - Biology - general aspects
8
AAA - Encyclopedias - general aspects
7
AFG - Large scale research institutions (Helmholtz Centres)
7
AHP - Philosophy
7
HBG - Molecular biology in medicine, human genetics
7
LAE - Popular biology
7
LGN - Zoology - anatomy, systematics, embryology
7
LRR - Tissue cultures, cell cultures
7
URA - Soil chemistry
7
HBX - Experimental medicine, laboratory animals
6
LBL - Evolution - general
6
LEK - Botany - systematics, taxonomy
6
LON - Molecular genetics
6
LRE - Cytology - general aspects
6
LTD - Biotechnology - comprehensive works
6
EKA - Wind energy
5
HBM - Medical microbiology, infectious diseases
5
LEL - Botany - lower plants
5
LKH - Biochemistry - methods
5
LTH - Biotechnology - methods
5
LVE - Food science - general
5
PAD - Physics - comprehensive works
5
UCL - Environmental research
5
UPN - Water protection, water quality, clean water
5
USNG - Waste water treatment - biological aspects
5
AHZ - History of science and technology
4
EUA - Energy conservation - general
4
HDE - Neurology - general aspects
4
LAN - Biologie - mathematische Methoden, Statistik
4
LAQ - Laboratory and safety engineering in biology
4
LCO - Hydrobiology
4
LEM - Botany - anatomy, morphology
4
LEO - Chemical compounds from plants
4
LGO - Sociobiology, ethology
4
LHA - Microbiology - reference books, culture collections
4
more ...