Hits 1-3 within 3 documents
Hits 1-3 within 3 documents
Author(s): Papastefanou, Georgios.- 1996. 24p.
Editor(s): Zentrum für Umfragen, Methoden und Analysen -ZUMA-.- 1999. 402p.
Author(s): Hansch, Esther; Piorkowsky, Michael-Burkhard.- 1999. 49-73p.