To cite package ‘OTclust’ in publications use:

  Zhang L, Seo B, Lin L, Li J (2020). _OTclust: Mean Partition,
  Uncertainty Assessment, Cluster Validation and Visualization
  Selection for Cluster Analysis_. R package version 1.0.6,
  <https://github.com/lixiangzhang/otclust>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {OTclust: Mean Partition, Uncertainty Assessment, Cluster Validation and
Visualization Selection for Cluster Analysis},
    author = {Lixiang Zhang and Beomseok Seo and Lin Lin and Jia Li},
    year = {2020},
    note = {R package version 1.0.6},
    url = {https://github.com/lixiangzhang/otclust},
  }