Columbia subject headings:
German language--Modality--Congresses.
German language--Particles--Congresses.
Modality (Linguistics)--Congresses.
Harvard subject headings:
German language--Modality--Congresses.
German language--Particles--Congresses.
Modality (Linguistics)--Congresses.
Princeton subject headings:
Evidentials (Linguistics)--Congresses.
German language--Modality--Congresses.
German language--Verb--Congresses.