To cite SPUTNIK in publications use:

Paolo I, Gonçalo C, Zoltan T, K NJ, C GR (2018). “SPUTNIK: an R package for filtering of spatially related peaks in mass spectrometry imaging data.” Bioinformatics, 36(1), 178-180. https://doi.org/10.1093/bioinformatics/bty622.

Corresponding BibTeX entry:

  @Article{,
    title = {SPUTNIK: an R package for filtering of spatially related
      peaks in mass spectrometry imaging data},
    author = {Inglese Paolo and Correia Gonçalo and Takats Zoltan and
      Nicholson Jeremy K and Glen Robert C},
    journal = {Bioinformatics},
    year = {2018},
    volume = {36},
    number = {1},
    pages = {178-180},
    url = {https://doi.org/10.1093/bioinformatics/bty622},
  }