Adaptive Threshold Puzzles

@inproceedings{bocan2005adaptive,
  author    = {Bocan, Valer and Făgădar-Cosma, Mihai},
  title     = {Adaptive Threshold Puzzles},
  booktitle = {EUROCON 2005 — The International Conference on "Computer as a Tool"},
  year      = {2005},
  address   = {Belgrade, Serbia and Montenegro},
  isbn      = {1-4244-0049-X}
}