@inproceedings{2004-doitrees-revisited, title = {DOITrees Revisited: Scalable, Space-Constrained Visualization of Hierarchical Data}, author = {Jeffrey Heer AND Stuart K. Card}, booktitle = {Advanced Visual Interfaces}, year = {2004}, pages = {421--424}, url = {http://vis.stanford.edu/papers/doitrees-revisited} }