To cite DCEM, use:

Parichit Sharma, Hasan Kurban, Mehmet Dalkilic DCEM: An R package for clustering big data via data-centric modification of Expectation Maximization, SoftwareX, 17, 100944, URL https://www.sciencedirect.com/science/article/pii/S2352711021001771

Corresponding BibTeX entry:

  @Article{,
    title = {DCEM: An R package for clustering big data via
      data-centric modification of Expectation Maximization},
    author = {Parichit Sharma and Hasan Kurban and Mehmet Dalkilic},
    journal = {SoftwareX},
    year = {2022},
    volume = {17},
    pages = {100944},
    url =
      {https://www.sciencedirect.com/science/article/pii/S2352711021001771},
  }