Columbia subject headings:
German language--Slang.
Personals.
Pornography--Terminology.
Sex--Terminology.
Harvard subject headings:
German language--Slang.
Personals.
Pornography--Terminology.
Sex--Terminology
Princeton subject headings:
Dictionaries.
German language--Slang.
German language--Terms and phrases.
Pornography--Social aspects--Germany (West).
Pornography--Terminology.