To cite package ‘NxtIRFdata’ in publications use:

  Middleton R, Gao D, Thomas A, Singh B, Au A, Wong JJ, Bomane A,
  Cosson B, Eyras E, Rasko JE, Ritchie W. IRFinder: assessing the
  impact of intron retention on mammalian gene expression. Genome Biol.
  2017 Mar 15;18(1):51.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {IRFinder: assessing the impact of intron retention on mammalian gene expression},
    author = {Robert Middleton and Dadi Gao and Aubin Thomas and Babita Singh and Amy Au and Justin J-L Wong and Alexandra Bomane and Bertrand Cosson and Eduardo Eyras and John E. J. Rasko and William Ritchie},
    year = {2017},
    journal = {Genome Biology},
    doi = {10.1186/s13059-017-1184-4},
    volume = {18},
    issue = {1},
    pages = {51},
  }