%0 Conference Paper %B INTERACT '09: Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction %D 2009 %T Understanding Multi-touch Manipulation for Surface Computing %A North, Chris %A Dwyer, Tim %A Lee, Bongshin %A Fisher, Danyel %A Isenberg, Petra %A Robertson, George %A Inkpen, Kori %B INTERACT '09: Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction %I Springer-Verlag %C Berlin, Heidelberg %P 236–249 %@ 978-3-642-03657-6 %G eng %R http://dx.doi.org/10.1007/978-3-642-03658-3_31