The UDK and ISO 19115 Standard. - Oliver Karschnick; Fred A. Kruse; Stefanie Töpker; Thomas Riegel; Marco Eichler; Sven Behrens (EnviroInfo, 2003)

Editing ISO 19115 Compliant Metadata in EUROSION. - Wassilios Kazakos; Alexei Akhounov; Heiko Paoli; Sven Behrens; Hugo Niesing; Stephane Lombardo (EnviroInfo, 2003)