1、paper : Bias-corrected confidence bands in nonparametric regression
   author : Yingcun Xia
   Journal of the Royal Statistical Society. Series B (Statistical Methodology)
  Vol. 60, No. 4 (1998), pp. 797-811 (article consists of 15 pages)

2、paper : Confidence Bands in Nonparametric Regression   
    author : R. L. Eubank and P. L. Speckman
   Journal of the American Statistical Association
  Vol. 88, No. 424 (Dec., 1993), pp. 1287-1301 (article consists of 15 pages)

3、paper : Confidence intervals for nonparametric regression
   author : Lawrence D. Brown, Xin Fu & Linda H. Zhao
   Journal of Nonparametric Statistics  Volume 23, Issue 1, 2011 ,pages 149-163


4、paper : Adjusted Confidence Bands in Nonparametric Regression
   author : Guoyi Zhang & Yan Lu
   Communications in Statistics - Simulation and Computation  Volume 37, Issue 1,
  2007 ,pages 106-113