To cite MassSpecWavelet package in publications use:

  Pan Du, Warren A. Kibbe, Simon M. Lin, Improved peak detection in
  mass spectrum by incorporating continuous wavelet transform-based
  pattern matching, Bioinformatics Volume 22, Issue 17, September 2006,
  Pages 2059–2065, https://doi.org/10.1093/bioinformatics/btl355

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Improved peak detection in mass spectrum by incorporating continuous wavelet transform-based pattern matching},
    journal = {Bioinformatics},
    volume = {22},
    number = {17},
    pages = {2059-2065},
    year = {2006},
    month = {09},
    issn = {1367-4803},
    doi = {10.1093/bioinformatics/btl355},
    author = {Pan Du and Warren A. Kibbe and Simon M. Lin},
    url = {https://doi.org/10.1093/bioinformatics/btl355},
    eprint = {https://academic.oup.com/bioinformatics/article-pdf/22/17/2059/767773/btl355.pdf},
  }

We have invested a lot of time and effort in creating the
MassSpecWavelet package, please cite it when using it for data
analysis.