文章名：Sharpening of the Upper Bound of the Absolute Constant in the Berry–Esseen Inequality杂志：Theory Probab. Appl. 期号：Volume 51, Issue 3, pp. 549-553 (2007) url：http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=TPRBAU000051000003000549000001&idtype=cvips&gifs=yes&ref=no
谢谢