Hits 1-3 within 3 documents
Hits 1-3 within 3 documents
Author(s): Buhr, Petra; Leibfried, Stephan; Ludwig, Monika; Voges, Wolfgang.- 1989. 28p.
Author(s): Rohwer, Götz; Voges, Wolfgang; Buhr, Petra.- 1992. 77p.
Author(s): Buhr, Petra; Ludwig, Monika.- 1991. 52p.