To cite package ‘bcSeq’ in publications use:

  Jiaxing Lin et. al bcSeq: An R Package for Fast Sequence Mapping in
  High-Throughput shRNA and CRISPR Screens Bioinformatics 34(11):bty402
  2018

A BibTeX entry for LaTeX users is

  @Article{,
    title = {bcSeq: An R Package for Fast Sequence Mapping in High-Throughput shRNA and CRISPR Screens},
    author = {Jiaxing Lin and Jeremy Gresham and Tongrong Wang and So Young Kim and James Alvarez and Jeffrey S. Damrauer and Scott Floyd and Joshua Granek and Andrew Allen and Cliburn Chan and Jichun Xie and Kouros Owzar},
    year = {2018},
    journal = {Bioinformatics},
    volume = {34},
    issue = {11},
    pages = {bty402},
    doi = {10.1093/bioinformatics/bty402},
    url = {http://dx.doi.org/10.1093/bioinformatics/bty402},
  }