To cite package ‘IntegrateBs’ in publications use:

Bai Y (2016). IntegrateBs: Integration for B-Spline. R package version 0.1.0, https://CRAN.R-project.org/package=IntegrateBs.

Corresponding BibTeX entry:

  @Manual{,
    title = {IntegrateBs: Integration for B-Spline},
    author = {Yue Bai},
    year = {2016},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=IntegrateBs},
  }