Motoki Miura Taro Sugihara Susumu Kunifuji Augmented Collaborative Card-Based Creative Activity with Digital Pens. 644-651 2009 HCI (1) http://dx.doi.org/10.1007/978-3-642-02574-7_72 conf/hci/2009-1 db/conf/hci/hci2009-1.html#MiuraSK09