@INPROCEEDINGS{KunchevaSSPR14a,
  author = {L. I. Kuncheva and A. S. Jackson},
  title = {Who is missing? {A} new pattern recognition puzzle},
  booktitle = {Intenrational Conference on Statistical, 
              Structural and Syntactic Pattern Recognition
              {(S+SSPR)}},
  year = {2014},
  publisher = {Springer},
  volume = {LNCS 8621},
  pages = {243--252},
  address = {Joensuu, Funland}
}