Classification
TKA - Civil engineering - general
2
CELF - Organic reactions
1
CHJH - Stereochemistry
1
GBAA - Geology - textbooks
1
GBAH - Stratigraphy, history of earth
1
GCAA - Regional geology - Germany
1
HDE - Neurology - general aspects
1
HRD - Dosimetry, radiation protection - medical aspects
1
LKN - Biochemistry of proteins, peptides, amino acids
1
LKRE - Biochemistry of enzymes - structure and function
1
TEK - Electric experiments, reliability and technology
1
UXL - Radiation protection - general aspects
1
YBB - Law - general
1
YPF - Labour science
1