BaoT89'

BibTeX

@article{DBLP:journals/actaC/BaoT89,
  author    = {Le Van Bao and
               Ho Thuan},
  title     = {Key ad superkey for a closure function},
  journal   = {Acta Cybern.},
  volume    = {9},
  number    = {1},
  year      = {1989},
  pages     = {73-88},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}