@article {DOI10.1109/MCG.2013.53, title = {Beyond Control Panels: Direct Manipulation for Visual Analytics}, journal = {IEEE Computer Graphics and Applications}, volume = {33}, year = {2013}, month = {07/2013}, pages = {6 - 13}, issn = {0272-1716}, doi = {10.1109/MCG.2013.53}, author = {Endert, Alex and Lauren Bradel and North, Chris} }