@article{weko_3299_1,
   author	 = "OKOSHI,Katsuya and IKEUCHI,Satoru",
   title	 = "Evolution of the intergalactic medium and UV background radiation",
   journal	 = "Publications of the Astronomical Society of Japan ",
   year 	 = "1996",
   volume	 = "48",
   number	 = "3",
   pages	 = "441--465",
   month	 = "aug"
}