To cite entropart in publications use:

  Eric Marcon, Bruno Herault (2015). entropart: An R Package to Measure
  and Partition Diversity. Journal of Statistical Software, 67(8),
  1-26. doi:10.18637/jss.v067.i08

A BibTeX entry for LaTeX users is

  @Article{,
    title = {{entropart}: An {R} Package to Measure and Partition Diversity},
    author = {Eric Marcon and Bruno H{\'e}rault},
    journal = {Journal of Statistical Software},
    year = {2015},
    volume = {67},
    number = {8},
    pages = {1--26},
    doi = {10.18637/jss.v067.i08},
  }