@article{weko_8598_1,
   author	 = "栗生,晴夫 and 山本,貞昭",
   title	 = "PGS（PLAN Graphic Support）について",
   journal	 = "情報処理",
   year 	 = "1969",
   volume	 = "10",
   number	 = "3",
   month	 = "may"
}