@article{weko_14100_1,
   author	 = "伊藤,一",
   title	 = "国際極年沿革",
   journal	 = "学術月報",
   year 	 = "2004",
   volume	 = "57",
   number	 = "5",
   pages	 = "388--390",
   month	 = "may"
}