To cite Kernel Factory use:

Ballings, M., & Van den Poel, D. (2012). Kernel Factory: An ensemble of Kernel Machines. Expert Systems With Applications. Forthcoming.

Corresponding BibTeX entry:

  @Article{,
    title = {Kernel Factory: An Ensemble of Kernel Machines},
    journal = {Expert Systems With Applications},
    volume = {Forthcoming},
    year = {2013},
    author = {{Michel Ballings} and {Dirk Van den Poel}},
  }