@article{weko_6675_1,
   author	 = "谷口,健一",
   title	 = "難しい組合せ論的問題と近似アルゴリズム",
   journal	 = "情報処理",
   year 	 = "1980",
   volume	 = "21",
   number	 = "11",
   month	 = "nov"
}