To cite Qest in publications use:

Sottile G, Frumento P (2022). “Robust estimation and regression with parametric quantile functions.” Computational Statistics and Data Analysis, 171, 107471. doi:10.1016/j.csda.2022.107471.

Corresponding BibTeX entry:

  @Article{,
    title = {Robust estimation and regression with parametric quantile
      functions},
    author = {Gianluca Sottile and Paolo Frumento},
    journal = {Computational Statistics and Data Analysis},
    year = {2022},
    volume = {171},
    pages = {107471},
    doi = {10.1016/j.csda.2022.107471},
  }