@article{weko_9589_1,
   author	 = "Naoshi,Uchihira and Yuji,Kyoya and SunK.Kim and Katsuhiro,Maeda and Masanori,Ozawa and Kosuke,Ishii",
   title	 = "Analysis and Design Methodology for Recognizing Opportunities and Difficulties for Product-based Services",
   journal	 = "情報処理学会論文誌",
   year 	 = "2008",
   volume	 = "49",
   number	 = "4",
   pages	 = "1549--1562",
   month	 = "apr"
}