@INBOOK{KunchevaWileyStat14,
  title = {Pattern Recognition and Classification},
  publisher = {John Wiley \& Sons, Ltd},
  year = {2014},
  author = {Kuncheva, L. I. and Whitaker, C. J.},
  booktitle = {Wiley StatsRef: Statistics Reference Online},
  doi = {10.1002/9781118445112.stat06503.pub2}
}