Classification
GTAK - Hydrogeology
131
UPVC - Groundwater
38
GAN - Geosciences - mathematical methods, computer applications
13
GMAB - Hydrogeochemistry
8
GTAP - Hydrological investigation methods
7
LCNC - Soil science - water transport
7
UPK - Water resources, water supply
6
GKA - Geophysics - general
5
GCAA - Regional geology - Germany
4
GMAC - Isotope geochemistry
4
GNA - Geology - soil sciences
4
UPT - Water pollution control and measurement
4
UPVF - Surface waters - streams, rivers, lakes
4
GBEE - Isotope geology
2
GCA - Regional geology
2
GSC - Remote sensing
2
UHN - Landscape ecology
2
UPN - Water protection, water quality, clean water
2
CHRV - Water and its properties
1
CRK - Application of isotopes
1
CT - Chemical methods of materials analysis
1
CTON - Tracer techniques
1
GAA - Geosciences - reference books
1
GBAA - Geology - textbooks
1
GBED - Glaciology
1
GBEN - Tectonics
1
GDA - Engineering geology - general
1
GKK - Geophysics - applications
1
GMAD - Organic geochemistry
1
GMK - Geochemistry of elements, minerals, rocks
1
GPA - Geobiology - general
1
GUAA - Geography - physical
1
LCH - Ecology - methods
1
LCK - Ecology - general aspects
1
LCO - Hydrobiology
1
LCP - Limnology
1
LWE - Agriculture - general aspects
1
LWH - Agriculture - soil sciences
1
MWH - Statistics
1
PCG - Transport theory - diffusion theory, filter processes
1
THQ - Fluid mechanics and dynamics
1
UA - Environment - general
1
UHP - Protection of nature and landscape
1
UPC - Water - general aspects
1
UPCK - Water models
1
UPV - Special waters
1
URA - Soil chemistry
1
USDN - Hazardous waste - incl. waste oil
1
UVA - Environmental chemicals, hazardous materials - comprehensive works
1
UXAL - Radioisotopes in soil and groundwater
1
more ...