@article{oai:u-ryukyu.repo.nii.ac.jp:02005348,
 author = {Nishishiraho, Toshihiko and 西白保, 敏彦},
 journal = {Ryukyu mathematical journal},
 month = {Jan},
 note = {Quantitative estimates for approximation processes of positive linear operators are derived by using a modulus of continuity and by taking higher-order absolute moments with respect to test systems under suitable assumptions. Furthermore, several applications are also provided., 紀要論文},
 pages = {43--82},
 title = {The order of convergence for positive approximation processes},
 volume = {8},
 year = {1996}
}