Columbia subject headings:
Harvard subject headings:
Labor market--Congresses.
Labor market--Germany--Congresses.
Manpower policy--Congresses
Manpower policy--Germany--Congresses.
Older people--Employment--Congresses.
Older people--Employment--Germany--Congresses.
Princeton subject headings:
Age and employment--Germany.
Labor market--Germany.
Middle-aged persons--Employment--Germany.
Older people--Employment--Germany.