@article{weko_59684_1,
   author	 = "Kiyoshi,Agusa",
   title	 = "Improving Software Productivity with Upper CASE Tools",
   journal	 = "Journal of Information Processing ",
   year 	 = "1991",
   volume	 = "14",
   number	 = "3",
   pages	 = "237--245",
   month	 = "dec"
}