Hits 1-5 within 5 documents
Hits 1-5 within 5 documents
Author(s): Böhnke, Petra; Kohler, Ulrich.- 2008. 47p.
Author(s): Veenhoven, Ruut.- 2001. 14p.
Author(s): Delhey, Jan; Böhnke, Petra.- 1999. 38p.
Author(s): Böhnke, Petra; Delhey, Jan.- 1999. 22p.
Author(s): Bulmahn, Thomas.- 1999. 36p.