Media type: E-Article Title: STACS 2006: The Ubiquitous Digital Tree Contributor: Flajolet, Philippe imprint: Springer Berlin Heidelberg, 2006 Published in: STACS 2006 Language: Not determined DOI: 10.1007/11672142_1 ISSN: 0302-9743; 1611-3349 Origination: Footnote: