Protecting VoD the Easier Way. - Carsten Griwodz; Oliver Merkel; Jana Dittmann; Ralf Steinmetz (ACM Multimedia, 1998)

Building Structures of Reusable Educational Content Based on LOM. - Stefan Hoermann 004; Cornelia Seeberg; Luka Divac-Krnic; Oliver Merkel; Andreas Faatz; Ralf Steinmetz (CAiSE Workshops, 2003)

Representation of Knowledge as Support for Authors of Reusable Educational Content. - Stefan Hoermann 004; Cornelia Seeberg; Luka Divac-Krnic; Oliver Merkel; Andreas Faatz; Ralf Steinmetz (WWW (Posters), 2003)