To cite KSgeneral in publications use:

  Dimitrova DS, Kaishev VK, Tan S (2020). “Computing the
  Kolmogorov-Smirnov Distribution When the Underlying CDF is Purely
  Discrete, Mixed, or Continuous.” _Journal of Statistical Software_,
  *95*(10), 1-42. doi:10.18637/jss.v095.i10
  <https://doi.org/10.18637/jss.v095.i10>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Computing the {K}olmogorov-{S}mirnov Distribution When the Underlying {CDF} is Purely Discrete, Mixed, or Continuous},
    author = {Dimitrina S. Dimitrova and Vladimir K. Kaishev and Senren Tan},
    journal = {Journal of Statistical Software},
    year = {2020},
    volume = {95},
    number = {10},
    pages = {1--42},
    doi = {10.18637/jss.v095.i10},
  }