Leveraging the semantics of topic maps : second international conference on topic maps research and applications, TMRA 2006, Leipzig, Germany, October 11-12, 2006: revised selected papers / ed. L. Maicher, 2007 r=on-line. - Текст : электронный.
Scaling topic maps : third International conference on topic maps research and applications, TMRA 2007 Leipzig, Germany, October 11-12, 2007: revised selected papers / ed.: L. Maicher, L. M. Garshol, 2008 r=on-line. - Текст : электронный.
Charting the topic maps research and applications landscape : first International workshop on topic maps research and applications, TMRA 2005, Leipzig, Germany, October 6-7, 2005: revised selected papers / SpringerLink (Online service), 2006 r=on-line. - Текст : электронный.