Yazar
Frank Helfrich
4 cilt bulundu.
Cilt sonuçları
Schnipp, Schnapp, Schnorum
Frank Helfrich, Silke Leffler · Betz
26 sayfa · 2006
Children's stories, German / Kinderlied / Kinderreim
Un mundo patentado?
Jorge Villarreal, Silke Helfrich, Alejandro Calvillo, Frank Augsten · Fundación Heinrich Böll
236 sayfa · 2005
Freedom of information / Intellectual property / Privatization / Biotechnology / Law and legislation