- German language--Dictionaries--English (2)
- Science--Dictionaries--German (2)
- Technology--Dictionaries--German (2)
- Automation--Dictionaries--Polyglot (1)
- Chemistry, Technical--Dictionaries--Polyglot (1)
- Dictionaries, Polyglot (1)
- Electronics--Dictionaries--Polyglot (1)
- Scientific apparatus and instruments--Dictionaries--Polyglot (1)