A longitudinal survey of private households in Germany. (long/narrow-Data)
Note: deprecated v34/2018
URL: https://www.diw.de/de/diw_02.c.221180.de/fdz_soep.html
- long/narrow-data (see: https://en.wikipedia.org/w/index.php?title=Wide_and_narrow_data&oldid=812516030)