@techreport{weko_46475_1,
   author	 = "Seiie,Jang and Woontack,Woo",
   title	 = "Unified Context Describing User-Centric Situation:Who Where When What How and Why",
   year 	 = "2005",
   institution	 = "GIST U-VR Lab., GIST U-VR Lab.",
   number	 = "60(2005-UBI-008)",
   month	 = "jun"
}