To cite panelView in publications use:

Mou H, Liu L, Xu Y (2023). “Panel Data Visualization in R (panelView) and Stata (panelview).” Journal of Statistical Software, 107(7), 1–20. doi:10.18637/jss.v107.i07.

Corresponding BibTeX entry:

  @Article{,
    title = {Panel Data Visualization in {R} ({panelView}) and {Stata}
      ({panelview})},
    author = {Hongyu Mou and Licheng Liu and Yiqing Xu},
    journal = {Journal of Statistical Software},
    year = {2023},
    volume = {107},
    number = {7},
    pages = {1--20},
    doi = {10.18637/jss.v107.i07},
  }