Columbia subject headings:
Harvard subject headings:
Archival materials--Europe, German-speaking--Data processing--Congresses.
Archives--Digitization--Europe, German-speaking--Congresses.
Digital preservation--Europe, German-speaking--Congresses.
Princeton subject headings:
Archival materials--Europe, German-speaking--Data processing--Congresses.
Archives--Digitization--Europe, German-speaking--Congresses.
Digital preservation--Europe, German-speaking--Congresses.