Hits 1-3 within 3 documents
Hits 1-3 within 3 documents
Author(s): Jürgens, Ulrich; Rupp, Joachim; Vitols, Katrin.- 2000. 34p.
Author(s): Jürgens, Ulrich.- 2002. 38p.
Author(s): Naschold, Frieder; Jürgens, Ulrich; Lippert, Inge; Renneke, Leo.- 1999. 26p.