To cite dml in publications, please use:

Tang et al., (2018). dml: Distance Metric Learning in R. Journal of Open Source Software, 3(30), 1036. https://doi.org/10.21105/joss.01036

Corresponding BibTeX entry:

  @Article{,
    author = {{Tang} and {Yuan} and {Gao} and {Tao} and {Xiao} and
      {Nan}},
    title = {dml: Distance Metric Learning in R},
    year = {2018},
    issue = {30},
    volume = {3},
    pages = {1036},
    url = {http://joss.theoj.org/papers/10.21105/joss.01036},
    doi = {10.21105/joss.01036},
    journal = {Journal of Open Source Software},
  }