@techreport{weko_31938_1,
   author	 = "加納幹雄",
   title	 = "平面上の複数個の点集合の平衡分割問題",
   year 	 = "2003",
   institution	 = "茨城大学",
   number	 = "3(2002-AL-088)",
   month	 = "jan"
}