2011,12,06 ImpAct: haptic stylus for shallow depth surface interaction Anusha Withana, Yuta Sugiura, Charith Fernando, Yuji Uema, Yasutoshi Makino, Maki Sugimoto, and Masahiko Inami In SIGGRAPH Asia 2011 Emerging Technologies (SA '11), ACM, Article 10, 1 pages, December 12-15, 2011, Hong Kong.