@techreport{weko_43081_1,
   author	 = "Kunio,Ohno",
   title	 = "Digital Content Types based on Information Media Symmetry",
   year 	 = "2004",
   institution	 = "DoCoMo Systems  Inc.",
   number	 = "36(2003-DD-043)",
   month	 = "mar"
}