@inproceedings{PelPur:06b,
  publisher = {Performantica},
  title = {Direct limits of direct systems of hypergroupoids associated to
           binary relations},
  address = {Ia\c si},
  author = {Pelea, Cosmin and Purdea, Ioan},
  booktitle = {Advances in Mathematics of Uncertainty, Selected papers, ECIT
               2006, Ia\c si, Romania, September 20--23, 2006},
  year = 2006,
  pages = {31--40},
  editor = {Tofan, Ioan},
}