Text in book
Weisbeck, Markus ; Waesche, Niko. – «Depersonifieded personal agents : a challenge to web design and the project "logo.gif"». – Seventh international symposium on electronic art : proceedings. – Edited by Michael B. Roetto. – Montréal : ISEA : Inter-Société des arts électroniques, 1997. – P. 131-133.