To cite the package 'kpeaks' in publications use:

Cebeci, Z. & Cebeci, C. (2018). A novel technique for fast determination of K in partitioning cluster analysis. Journal of Agricultural Informatics, 9(2), 1-11.<doi:10.17700/jai.2018.9.2.442>

Corresponding BibTeX entry:

  @Article{,
    title = {A novel technique for fast determination of K in
      partitioning cluster analysis.},
    author = {Zeynel Cebeci and Cagatay Cebeci},
    journal = {Journal of Agricultural Informatics},
    year = {2018},
    volume = {9},
    number = {2},
    pages = {1--11},
    doi = {10.17700/jai.2018.9.2.442},
  }