Classification
GPAB - Flora, vegetation - geographical aspects
59
LCMC - Plants - ecology
11
LEK - Botany - systematics, taxonomy
9
UHN - Landscape ecology
6
GPA - Geobiology - general
5
LCK - Ecology - general aspects
5
LED - Botany - comprehensive works
5
UMV - Climatic change
5
GBAK - Paleontology
4
LCM - Terrestrial ecology
4
LEE - Botany - general aspects
4
LEL - Botany - lower plants
3
LWV - Agriculture - plant protection
3
UCA - Environmental problems, man and environment - general aspects
3
LCL - Biotopes, ecosystems
2
LCO - Hydrobiology
2
ALE - Biographies of scientists and Nobel prize winners - individual
1
GAN - Geosciences - mathematical methods, computer applications
1
GBA - General geology, historical geology
1
GBEC - Geomorphology
1
GCAA - Regional geology - Germany
1
GCAC - Regional geology - noneuropean countries
1
GRBA - Climatology - general
1
GWBA - Raw material resources, raw material reserves
1
LBLC - Paleontology - biological aspects
1
LCV - Ecology - models
1
LEM - Botany - anatomy, morphology
1
LEN - Plant physiology
1
LER - Plant physiology - ecological aspects
1
LHO - Fungi - morphology, systematics
1
LOL - Genetics - general aspects, classic genetics
1
LWE - Agriculture - general aspects
1
UML - Air pollution by special sources
1
UPN - Water protection, water quality, clean water
1
UVF - Environmental aspects of heavy metals and their compounds
1