@inproceedings{weko_117074_1,
   author	 = "和田,幸一 and 川口,喜三男 and 藤嶋,秀幸",
   title	 = "有向,無効グラフに対する最適なt-spannerの構成について",
   booktitle	 = "全国大会講演論文集",
   year 	 = "1989",
   volume	 = "第39回",
   number	 = "情報理論及び基礎技術",
   pages	 = "79--80",
   month	 = "oct"
}