@conference{173, author = {Monika Lanzenberger and Silvia Miksch}, title = {The Hyperbolic Hypotheses Tree}, year = {2003}, journal = {Proceedings of the World Conference on Educational Multimedia, Hypermedia & Telecommunications (ED-Media 03)}, pages = {831–834}, publisher = {AACE}, isbn = {1-880094-45-2}, url = {http://www.ifs.tuwien.ac.at/ mlanzenberger/publications/HHT.pdf}, language = {eng}, }