Hits 1-4 within 4 documents
Hits 1-4 within 4 documents
Author(s): Jahn, Elke J.; Wagner, Thomas.- 2006. 58p.
Author(s): Solga, Heike; Baas, Meike; Kohlrausch, Bettina.- 2011. 156p.
Author(s): Baltagi, Badi H.; Blien, Uwe; Wolf, Katja.- 2007. 17p.
Author(s): Hein, Eckhard; Schulten, Thorsten.- 2004. 29p.