@article{weko_60283_1,
   author	 = "Sin,Hitotumatu",
   title	 = "On the Approximation of a Function of two Variables by the Product",
   journal	 = "Information Processing in Japan",
   year 	 = "1968",
   volume	 = "8",
   number	 = "0",
   pages	 = "41--43",
   month	 = "jan"
}