@article{weko_60230_1,
   author	 = "Masatsugu,Tanaka",
   title	 = "Quadrature Formulas with the Error Estimating Ability",
   journal	 = "Information Processing in Japan",
   year 	 = "1971",
   volume	 = "11",
   number	 = "0",
   pages	 = "144--151",
   month	 = "jan"
}