Columbia subject headings:
Harvard subject headings:
Collective memory--Congresses.
Conflict of generations--Congresses.
Generations--Congresses.
Generations--Europe--Congresses.
Generations--Germany--Congresses.
Intergenerational relations--Congresses.
Intergenerational relations--Germany--Congresses.
Social constructionism--Congresses.
Princeton subject headings:
Generations--Europe--Congresses.
Generations--Germany--Congresses.