Géry Casiez Daniel Vogel Qing Pan Christophe Chaillou RubberEdge: reducing clutching by combining position and rate control with elastic feedback. 129-138 2007 conf/uist/2007 UIST http://doi.acm.org/10.1145/1294211.1294234 db/conf/uist/uist2007.html#CasiezVPC07