To cite clusterSim in publications use:

  Walesiak M, Dudek A (2020). “The Choice of Variable Normalization
  Method in Cluster Analysis.” In Soliman KS (ed.), _Education
  Excellence and Innovation Management: A 2025 Vision to Sustain
  Economic Development During Global Challenges_, 325-340. ISBN
  978-0-9998551-4-1.

A BibTeX entry for LaTeX users is

  @InProceedings{,
    title = {The Choice of Variable Normalization Method in Cluster Analysis},
    author = {Marek Walesiak and Andrzej Dudek},
    booktitle = {Education Excellence and Innovation Management: A 2025 Vision to Sustain Economic Development During Global Challenges},
    booksubtitle = {Proceedings of the 35th International Business Information Management Association Conference (IBIMA), 1-2 April 2020, Seville, Spain},
    year = {2020},
    publisher = {International Business Information Management Association (IBIMA)},
    editor = {Khalid S. Soliman},
    pages = {325-340},
    isbn = {978-0-9998551-4-1},
  }