To cite package ‘nontarget’ in publications use:

  Loos, M., Singer, H. (2017).  Nontargeted homologue series extraction
  from hyphenated high resolution mass spectrometry, Journal of
  Cheminformatics 9(12), .

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Nontargeted homologue series extraction from hyphenated high resolution mass spectrometry data},
    author = {Martin Loos and Heinz Singer},
    journal = {Journal of Cheminformatics},
    volume = {9},
    number = {12},
    year = {2017},
    url = {http://},
  }