Norihisa Segawa Yuko Murayama Masatoshi Miyazaki Information Hiding with a Handwritten Message in Vector-Drawing Codes. 306 2002 HICSS http://csdl.computer.org/comp/proceedings/hicss/2002/1435/09/14350306babs.htm db/conf/hicss/hicss2002-9.html#SegawaMM02