To cite ddalpha in publications use:

Lange, T., Mosler, K. and Mozharovskyi, P. (2014). Fast nonparametric classification based on data depth. Statistical Papers, 55, 49-69
Mozharovskyi, P., Mosler, K. and Lange, T. (2013). Classifying real-world data with the DDalpha-procedure. Mimeo

Corresponding BibTeX entries:

  @Article{,
    title = {Fast nonparametric classification based on data depth},
    author = {Tatjana Lange and Karl Mosler and Pavlo Mozharovskyi},
    journal = {Statistical Papers},
    year = {2014},
    volume = {55},
    number = {1},
    pages = {49-69},
  }
  @Article{,
    title = {Classifying real-world data with the DDalpha-procedure},
    author = {Pavlo Mozharovskyi and Karl Mosler and Tatjana Lange},
    journal = {Mimeo},
    year = {2013},
  }