@article{weko_4904_1,
   author	 = "戸田,誠之助",
   title	 = "実際的計算可能性の拡張について",
   journal	 = "情報処理",
   year 	 = "1990",
   volume	 = "31",
   number	 = "4",
   month	 = "apr"
}