Columbia subject headings:
Linguistics--Germany--History--Congresses.
Linguistics--Study and teaching (Higher)--Germany--Halle an der Saale--Congresses.
Harvard subject headings:
Communication--Congresses
German language--Phonetics--Congresses.
Phonetics--Congresses
Rhetoric--Congresses
Speech--Congresses
Princeton subject headings:
Linguistics--Germany--History--Congresses.
Linguistics--Study and teaching (Higher)--Germany--Halle an der Saale--Congresses.