Classification
GNA - Geology - soil sciences
15
LWH - Agriculture - soil sciences
11
URA - Soil chemistry
11
LCN - Ecology - soil sciences
3
LWE - Agriculture - general aspects
3
DOL - Programming language - Python
1
GAN - Geosciences - mathematical methods, computer applications
1
LAA - Biology - reference books
1
UCS - Environmental chemistry
1
UPCE - Water chemistry
1
UUD - Ecotoxicology
1