To cite preseqR in publications use:

Deng C, Daley T and Smith A (2015). Applications of species accumulation curves in large-scale biological data analysis. Quantitative Biology, 3(3), 135-144. URL http://dx.doi.org/10.1007/s40484-015-0049-7.

Corresponding BibTeX entry:

  @Article{,
    title = {Applications of species accumulation curves in large-scale
      biological data analysis},
    author = {Chao Deng and Timothy Daley and Andrew D. Smith},
    journal = {Quantitative Biology},
    year = {2015},
    volume = {3},
    number = {3},
    pages = {135--144},
    url = {http://dx.doi.org/10.1007/s40484-015-0049-7},
  }