Diego Rodrigues Ian Oakley Social Circles: A 3D User Interface for Facebook. 838-839 2009 INTERACT (2) https://doi.org/10.1007/978-3-642-03658-3_89 https://www.wikidata.org/entity/Q59589547 conf/interact/2009-2 db/conf/interact/interact2009-2.html#RodriguesO09