Visualisation and Debugging of Decentralised Information Ecosystems. - Rolf Hendrik van Lengen; Jan-Thies Bähr (Software Visualization, 2001)

Visualizing the shadows of Information. - Martin Bertram 001; Sascha Köhn; Jan-Thies Bähr; Bertin Klein; Rolf Hendrik van Lengen (Wissensmanagement, 2003)