To cite VPdtw in publications use:

Clifford D, Stone G (2012). “Variable Penalty Dynamic Time Warping Code for Aligning Mass Spectrometry Chromatograms in R.” Journal of Statistical Software, 47(8), 1–17. https://www.jstatsoft.org/v47/i08/.

Clifford D, Stone G, Montoliu I, Rezzi S, Martin F, Guy P, Bruce S, Kochhar S (2009). “Alignment Using Variable Penalty Dynamic Time Warping.” Analytical Chemistry, 81(3), 1000–1007.

Corresponding BibTeX entries:

  @Article{,
    title = {Variable Penalty Dynamic Time Warping Code for Aligning
      Mass Spectrometry Chromatograms in {R}},
    author = {David Clifford and Glenn Stone},
    journal = {Journal of Statistical Software},
    year = {2012},
    volume = {47},
    number = {8},
    pages = {1--17},
    url = {https://www.jstatsoft.org/v47/i08/},
  }

  @Article{,
    title = {Alignment Using Variable Penalty Dynamic Time Warping},
    author = {David Clifford and Glenn Stone and Ivan Montoliu and
      Serge Rezzi and Francois-Pierre Martin and Philippe Guy and
      Stephen Bruce and Sunil Kochhar},
    journal = {Analytical Chemistry},
    year = {2009},
    volume = {81},
    number = {3},
    pages = {1000--1007},
  }