To cite package ‘sankeywheel’ in publications use:

  Cheng Z, Li Q (2019). _sankeywheel: Create Dependency Wheels and
  Sankey Diagrams_. R package version 0.1.0,
  <https://CRAN.R-project.org/package=sankeywheel>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {sankeywheel: Create Dependency Wheels and Sankey Diagrams},
    author = {Zhenxing Cheng and Qiongqiong Li},
    year = {2019},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=sankeywheel},
  }