Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OOURA Takuya,An improved convergence test for the double exponential formula,Transactions of the Japan Society for Industrial and Applied Mathematics,09172246,The Japan Society for Industrial and Applied Mathematics,2003,13,2,225-230,https://cir.nii.ac.jp/crid/1390001205767577984,https://doi.org/10.11540/jsiamt.13.2_225