Classification
ACE - Germanic languages, Indo-Germanic languages
1
CHX - Chemical thermodynamics
1
DCA - Informatics - theoretical
1
EXA - Energy policy
1
HPT - Toxicology
1
HTJ - Tumors
1
PAD - Physics - comprehensive works
1
PCA - Thermodynamics
1
TIK - Filter, dust
1
TNO - Nuclear reactor safety
1
UVFD - Environmental aspects of specific heavy metals - cadmium, lead, mercury
1