TY  - CHAP
LA  - ger
PY  - 2004
SN  - 3-7757-1481-2
TI  - Demographische Alterung
UR  - https://nbn-resolving.org/urn:nbn:de:0070-bipr-43893
Y2  - 2026-03-19T18:47:39
ER  -