Classification
ACA - Languages, dictionaries - general
3
ACE - Germanic languages, Indo-Germanic languages
3
TAA - Engineering sciences - reference books
2
EHA - Renewable energy sources
1
MAD - Mathematics - comprehensive works
1
MIB - Measure theory, integration theory
1
MKA - Ordinary differential equations
1
PAE - Physics - general interest
1
THA - Mechanical engineering - general
1
TIA - Industrial engineering - general
1
TIE - Process engineering
1