Columbia subject headings:
Harvard subject headings:
Archival materials--Digitization--Germany--History--Congresses.
Archives--Germany--Computer network resources--Congresses.
Archives--Germany--History--Congresses.
Archives--Germany--Use studies--Congresses.
Princeton subject headings:
Archival materials--Digitization--Germany--History--Congresses.
Archives--Germany--Computer network resources--Congresses.
Archives--Germany--History--Congresses.
Archives--Germany--Use studies--Congresses.